Passive Voice (Various Tenses) – English Grammar Exercises for B1
You are giving a presentation on how coffee is produced. Choose the best option (A, B, C, or D) to complete each step of the process.
1 “Good morning, everyone. Today I will talk about coffee. First of all, the coffee plants ______ in tropical climates around the world.”
(A) are planted
(B) plant
(C) were planted
(D) are plant
2 “It takes a few years for the plant to grow. When they are finally ripe, the red coffee cherries ______ by the farmers.”
(A) is picked
(B) are picking
(C) are picked
(D) pick
3 “Next, the outer skin of the cherry ______ to reveal the green bean inside.”
(A) removes
(B) is removed
(C) are removed
(D) has removed
4 “Then, the beans ______ in large tanks of water to clean off any remaining fruit.”
(A) are washed
(B) wash
(C) were washed
(D) are wash
5 “After the washing stage, the wet beans ______ out in the sun to dry completely.”
(A) is spread
(B) spread
(C) are spreaded
(D) are spread
6 “To ensure that they dry evenly, the beans ______ regularly with special wooden rakes.”
(A) are turning
(B) turn
(C) are turned
(D) is turned
7 “Once the drying process is complete, the remaining dry skin ______ by a hulling machine.”
(A) are taken off
(B) is taken off
(C) takes off
(D) took off
8 “At this important stage, the beans ______ according to their size and overall quality.”
(A) grade
(B) are graded
(C) is graded
(D) were graded
9 “Quality control is very strict. Any defective or dark beans ______ carefully from the main batch.”
(A) are discarded
(B) are discarding
(C) discard
(D) is discarded
10 “For international export, the green beans ______ into large burlap bags.”
(A) pack
(B) are packed
(C) is packed
(D) are pack
11 “Every single year, millions of these bags ______ to different countries across the globe.”
(A) are shipping
(B) are ship
(C) ship
(D) are shipped
12 “When they arrive at the local facility, the raw green coffee ______ in a specialized, very hot oven.”
(A) roasts
(B) was roasted
(C) is roasted
(D) are roasted
13 “The temperature inside the roasting machine ______ strictly at around 200 degrees Celsius.”
(A) is maintained
(B) is maintain
(C) maintains
(D) are maintained
14 “Immediately after roasting, the hot beans ______ down quickly to stop the cooking process.”
(A) are cooled
(B) cool
(C) are cooling
(D) is cooled
15 “For consumer convenience, some of the roasted coffee ______ into fine powder before packaging.”
(A) grinds
(B) is ground
(C) are ground
(D) is grinded
16 “To keep that wonderful aroma fresh, the final product ______ in vacuum-sealed bags.”
(A) is sealed
(B) seals
(C) was sealed
(D) are sealed
17 “Finally, the finished packages ______ to supermarkets, local shops, and cafes everywhere.”
(A) deliver
(B) is delivered
(C) are delivered
(D) are delivering
18 “When you order at a cafe, the coffee powder ______ with hot water under high pressure.”
(A) are mixed
(B) is mixed
(C) mixed
(D) mixes
19 “Very often, the espresso ______ to you with a beautiful milk art design on top.”
(A) is serve
(B) serves
(C) is served
(D) was served
20 “And that is exactly how a simple agricultural seed ______ into your delicious morning cup of coffee. Thank you for listening!”
(A) transforms
(B) is transformed
(C) are transformed
(D) was transformed
ANSWER KEY & EXPLANATIONS
1 (A) are planted
- Why it is correct (The Key): Describing a general fact/process in the present requires Present Simple Passive. “Plants” is plural, so we use “are planted”.
- Distractor Analysis:
- (B) Common Mistake: Active voice. Plants cannot plant themselves.
- (C) Strong Distractor: Past Simple Passive. Incorrect because this is an ongoing, general process, not a historical event.
- (D) Structural Error: Missing the “-ed” for the past participle.
2 (C) are picked
- Why it is correct (The Key): “Cherries” is plural, and they receive the action -> are + V3/ed.
- Distractor Analysis:
- (A) Structural Error: Uses “is” for a plural subject.
- (B) Strong Distractor: Present Continuous Active. Sounds like they are picking something right now, which is wrong in meaning and voice.
- (D) Common Mistake: Active voice.
3 (B) is removed
- Why it is correct (The Key): “The outer skin” is a singular/uncountable subject receiving the action -> is + V3/ed.
- Distractor Analysis:
- (A) Common Mistake: Active voice. Skin doesn’t remove things.
- (C) Structural Error: Uses “are” for a singular subject.
- (D) Strong Distractor: Present Perfect Active. Incorrect voice and tense for a sequential process.
4 (A) are washed
- Why it is correct (The Key): Plural subject “beans” receiving the action -> are + V3/ed.
- Distractor Analysis:
- (B) Common Mistake: Active voice.
- (C) Strong Distractor: Past Simple Passive. Describes a past event rather than a general process step.
- (D) Structural Error: Missing “-ed” on the verb.
5 (D) are spread
- Why it is correct (The Key): “Beans” is plural. The verb “spread” is irregular; its past participle is identical to its base form (spread – spread – spread).
- Distractor Analysis:
- (A) Structural Error: Uses “is” for plural “beans”.
- (B) Common Mistake: Active voice.
- (C) Strong Distractor / Structural Error: “Spreaded” is a very common learner mistake because they try to apply regular “-ed” rules to an irregular verb.
6 (C) are turned
- Why it is correct (The Key): The pronoun “they” refers to the beans (plural). Present Simple Passive -> are + V3/ed.
- Distractor Analysis:
- (A) Strong Distractor: Present Continuous Passive structure but missing “being” (are being turned) or Active Continuous. Either way, it’s incorrect for a general step.
- (B) Common Mistake: Active voice.
- (D) Structural Error: Uses “is” with “they”.
7 (B) is taken off
- Why it is correct (The Key): “The remaining dry skin” is an uncountable/singular noun -> is + V3
- Distractor Analysis:
- (A) Structural Error: Uses “are” for an uncountable noun (“skin”).
- (C) Common Mistake: Active voice.
- (D) Strong Distractor: Past Simple Active. Wrong voice and wrong tense.
8 (B) are graded
- Why it is correct (The Key): Plural subject “beans” receives the action of grading -> are + V3/ed.
- Distractor Analysis:
- (A) Common Mistake: Active voice.
- (C) Structural Error: Uses “is” for plural “beans”.
- (D) Strong Distractor: Past Simple Passive.
9 (A) are discarded
- Why it is correct (The Key): “Beans” is plural -> are + V3/ed.
- Distractor Analysis:
- (B) Strong Distractor: Active continuous.
- (C) Common Mistake: Active voice.
- (D) Structural Error: Uses “is” for a plural subject.
10 (B) are packed
- Why it is correct (The Key): Plural “beans” -> are + V3/ed.
- Distractor Analysis:
- (A) Common Mistake: Active voice.
- (C) Structural Error: Uses “is” for a plural subject.
- (D) Structural Error: Missing “-ed”.
11 (D) are shipped
- Why it is correct (The Key): “Millions of bags” is a plural subject -> are + V3/ed.
- Distractor Analysis:
- (A) Strong Distractor: Active continuous (bags don’t ship themselves).
- (B) Structural Error: Missing “-ed” (and doubled ‘p’ rule for CVC words).
- (C) Common Mistake: Active voice.
12 (C) is roasted
- Why it is correct (The Key): “Coffee” is an uncountable noun, so it takes a singular verb -> is + V3/ed.
- Distractor Analysis:
- (A) Common Mistake: Active voice.
- (B) Strong Distractor: Past Simple Passive.
- (D) Structural Error: Uses “are” with uncountable “coffee”.
13 (A) is maintained
- Why it is correct (The Key): “The temperature” is singular -> is + V3/ed.
- Distractor Analysis:
- (B) Structural Error: Missing “-ed”.
- (C) Common Mistake: Active voice.
- (D) Structural Error: Uses “are” for singular “temperature”.
14 (A) are cooled
- Why it is correct (The Key): Plural “beans” -> are + V3/ed.
- Distractor Analysis:
- (B) Common Mistake: Active voice. (While “cool down” can be active intransitive, in a manufacturing process, external forces do the cooling, making passive much more appropriate).
- (C) Strong Distractor: Present Continuous Active.
- (D) Structural Error: Uses “is” for plural.
15 (B) is ground
- Why it is correct (The Key): “Coffee” is uncountable -> “is”. The past participle of “grind” is “ground”.
- Distractor Analysis:
- (A) Common Mistake: Active voice.
- (C) Structural Error: Uses “are” for an uncountable noun.
- (D) Strong Distractor / Structural Error: “Grinded” is a very common incorrect attempt at making “grind” a regular verb.
16 (A) is sealed
- Why it is correct (The Key): “The final product” is singular -> is + V3/ed.
- Distractor Analysis:
- (B) Common Mistake: Active voice.
- (C) Strong Distractor: Past Simple Passive.
- (D) Structural Error: Uses “are” for a singular subject.
17 (C) are delivered
- Why it is correct (The Key): “Packages” is plural -> are + V3/ed.
- Distractor Analysis:
- (A) Common Mistake: Active voice.
- (B) Structural Error: Uses “is” for plural.
- (D) Strong Distractor: Present continuous active.
18 (B) is mixed
- Why it is correct (The Key): “Coffee powder” is uncountable -> is + V3/ed.
- Distractor Analysis:
- (A) Structural Error: Uses “are” for uncountable noun.
- (C) Strong Distractor: Past Simple Active.
- (D) Common Mistake: Active voice.
19 (C) is served
- Why it is correct (The Key): “Espresso” is singular -> is + V3/ed.
- Distractor Analysis:
- (A) Structural Error: Missing “-ed”.
- (B) Common Mistake: Active voice.
- (D) Strong Distractor: Past Simple Passive.
20 (B) is transformed
- Why it is correct (The Key): “A simple seed” is singular -> is + V3/ed.
- Distractor Analysis:
- (A) Common Mistake: Active voice.
- (C) Structural Error: Uses “are” for a singular subject.
- (D) Strong Distractor: Past Simple Passive.
GRAMMAR POINTS TO REMEMBER
1 The Communicative Purpose of Passive Voice in Processes
When we describe how something is made (Process Description), such as a recipe, a factory assembly line, or an agricultural cycle, the product (e.g., coffee, tea, cars) is the most important element. We do not focus on who is doing the action (the farmer, the machine, the worker) because it is obvious or irrelevant. Therefore, we use the Passive Voice to put the product at the beginning of the sentence.
2 Why Present Simple?
A production process is a series of facts or a routine that happens exactly the same way every time. Because it is a general truth and not a historical event, we strictly use the Present Simple Tense.
- Incorrect (Past): The beans were washed. (This means it only happened once in the past).
- Correct (Present): The beans are washed. (This means this is how it is always done).
3 The Core Formula
Subject (The Product) + is / are + Past Participle (V3 / -ed)
- Use is for singular nouns and uncountable nouns (e.g., the skin is removed, the coffee is roasted, the temperature is maintained).
- Use are for plural nouns (e.g., the beans are picked, the bags are shipped).
4 Watch Out for Irregular Verbs
Always memorize the 3rd column (Past Participle) of irregular verbs used in manufacturing. Common ones include:
- Grow → are grown
- Take → is taken
- Grind → is ground (Never use “grinded”)
- Spread → are spread (Never use “spreaded”)