During vs. While – English Grammar Exercises for B1
You are reading an email from a senior colleague giving you advice on how to be productive during your upcoming 10-hour business flight. Choose the best option (A, B, C, or D) to complete each sentence.
1 “You should definitely bring those printed quarterly reports to read ______ the long flight.”
(A) while
(B) during
(C) for
(D) when
2 “______ you are sitting on the plane for ten hours, you can easily review the new presentation slides.”
(A) During
(B) For
(C) While
(D) However
3 “Many successful executives listen to educational audiobooks ______ traveling for business.”
(A) during
(B) within
(C) throughout
(D) while
4 “I highly recommend wearing noise-canceling headphones ______ the noisy takeoff and landing.”
(A) during
(B) while
(C) inside
(D) onto
5 “______ the flight attendants are serving lunch, you can quickly organize your cluttered laptop files.”
(A) Despite
(B) While
(C) During
(D) From
6 “You can get a surprising amount of work done ______ your ten-hour journey to Tokyo.”
(A) while
(B) along
(C) during
(D) at
7 “Please make sure to keep your seatbelt fastened securely ______ experiencing any sudden turbulence.”
(A) while
(B) during
(C) until
(D) within
8 “______ the overnight trip, try to get at least five hours of solid sleep so you arrive refreshed.”
(A) While
(B) As
(C) During
(D) Meanwhile
9 “I usually download a few industry podcasts to listen to ______ waiting at the departure gate.”
(A) during
(B) across
(C) while
(D) over
10 “______ we are flying over the ocean, we won’t have any stable internet connection to check emails.”
(A) During
(B) Throughout
(C) Unless
(D) While
11 “You should fully charge your laptop battery ______ the short layover in Dubai.”
(A) during
(B) while
(C) on
(D) in
12 “______ reading the dense contract details, use a digital highlighter to mark the most important clauses.”
(A) During
(B) While
(C) Because
(D) Although
13 “There is usually a lot of uninterrupted quiet time ______ a late-night red-eye flight.”
(A) while
(B) inside
(C) during
(D) through
14 “______ the pilot was announcing the weather conditions, I realized I had forgotten my charger.”
(A) During
(B) Whenever
(C) For
(D) While
15 “It is a great idea to stand up and stretch your legs every few hours ______ flying.”
(A) while
(B) during
(C) inside
(D) across
16 “Do not leave your expensive laptop unattended on the seat ______ your bathroom breaks.”
(A) while
(B) beyond
(C) from
(D) during
17 “______ you wait for the boarding process to begin, you can quickly reply to those urgent client emails.”
(A) During
(B) While
(C) For
(D) Despite
18 “You might experience some mild ear pain ______ the initial descent into the international airport.”
(A) during
(B) while
(C) onto
(D) underneath
19 “______ reviewing these financial documents, you will probably find some minor calculation errors.”
(A) During
(B) Which
(C) While
(D) Unless
20 “I suggest you turn off your phone notifications completely ______ the entire flight to stay focused.”
(A) while
(B) over
(C) inside
(D) during
ANSWER KEY & EXPLANATIONS
1 (B) during
- Why it is correct (The Key): “The long flight” is a noun phrase representing an event. We use During + Noun Phrase to indicate the timeframe in which something happened.
- Error Analysis: (A) while (Common Mistake) requires a subject and a verb (e.g., while the flight is happening). (C) for (Strong Distractor) measures a duration of time (e.g., for ten hours), not the event itself. (D) when (Structural Error).
2 (C) While
- Why it is correct (The Key): “You are sitting on the plane” is a full clause containing a subject (“you”) and a continuous verb (“are sitting”). We must use While + Clause.
- Error Analysis: (A) During (Common Mistake) cannot be followed by a clause. (B) For (Structural Error). (D) However (Structural Error).
3 (D) while
- Why it is correct (The Key): While + V-ing (traveling). This is a reduced clause meaning “while they are traveling.”
- Error Analysis: (A) during (Common Mistake) You can never use “during” directly before an active V-ing action (e.g., “during traveling” is invalid). (B) within (Structural Error). (C) throughout (Strong Distractor) requires a noun phrase.
4 (A) during
- Why it is correct (The Key): “The noisy takeoff and landing” is a descriptive noun phrase.
- Error Analysis: (B) while (Common Mistake) would require a clause: “while we are taking off and landing.” (C) inside (Structural Error). (D) onto (Structural Error).
5 (B) While
- Why it is correct (The Key): “The flight attendants are serving lunch” is a complete clause (Subject + Verb).
- Error Analysis: (A) Despite (Strong Distractor). (C) During (Common Mistake). (D) From (Structural Error).
6 (C) during
- Why it is correct (The Key): “Your ten-hour journey to Tokyo” is a noun phrase acting as a defined timeframe.
- Error Analysis: (A) while (Common Mistake). (B) along (Structural Error). (D) at (Structural Error).
7 (A) while
- Why it is correct (The Key): While + V-ing (experiencing).
- Error Analysis: (B) during (Common Mistake) “During experiencing” is grammatically incorrect. (C) until (Strong Distractor). (D) within (Structural Error).
8 (C) During
- Why it is correct (The Key): “The overnight trip” is a noun phrase.
- Error Analysis: (A) While (Common Mistake). (B) As (Strong Distractor) requires a clause (As you take the trip). (D) Meanwhile (Structural Error).
9 (C) while
- Why it is correct (The Key): While + V-ing (waiting).
- Error Analysis: (A) during (Common Mistake) Never say “during waiting.” (B) across (Structural Error). (D) over (Structural Error).
10 (D) While
- Why it is correct (The Key): “We are flying over the ocean” is a full active clause.
- Error Analysis: (A) During (Common Mistake). (B) Throughout (Strong Distractor) would need a noun phrase (“Throughout the flight”). (C) Unless (Structural Error).
11 (A) during
- Why it is correct (The Key): “The short layover in Dubai” is a noun phrase representing an event/period.
- Error Analysis: (B) while (Common Mistake). (C) on (Structural Error). (D) in (Strong Distractor) is used for locations (in Dubai), but “during” is needed to frame the event (“the layover”).
12 (B) While
- Why it is correct (The Key): While + V-ing (reading).
- Error Analysis: (A) During (Common Mistake) “During reading” is a classic B1 mistake. (C) Because (Structural Error). (D) Although (Strong Distractor).
13 (C) during
- Why it is correct (The Key): “A late-night red-eye flight” is a noun phrase.
- Error Analysis: (A) while (Common Mistake). (B) inside (Structural Error). (D) through (Strong Distractor).
14 (D) While
- Why it is correct (The Key): “The pilot was announcing the weather conditions” is a full past continuous clause.
- Error Analysis: (A) During (Common Mistake). (B) Whenever (Structural Error). (C) For (Structural Error).
15 (A) while
- Why it is correct (The Key): While + V-ing (flying).
- Error Analysis: (B) during (Common Mistake) “During flying” is ungrammatical. If you want to use during, you must use the noun: “During the flight.” (C) inside (Structural Error). (D) across (Structural Error).
16 (D) during
- Why it is correct (The Key): “Your bathroom breaks” is a plural noun phrase.
- Error Analysis: (A) while (Common Mistake) would be “while you take bathroom breaks.” (B) beyond (Structural Error). (C) from (Structural Error).
17 (B) While
- Why it is correct (The Key): “You wait for the boarding process to begin” is a complete clause.
- Error Analysis: (A) During (Common Mistake). (C) For (Structural Error). (D) Despite (Strong Distractor).
18 (A) during
- Why it is correct (The Key): “The initial descent into the international airport” is a descriptive noun phrase.
- Error Analysis: (B) while (Common Mistake). (C) onto (Structural Error). (D) underneath (Structural Error).
19 (C) While
- Why it is correct (The Key): While + V-ing (reviewing).
- Error Analysis: (A) During (Common Mistake) Never say “During reviewing.” (B) Which (Structural Error). (D) Unless (Strong Distractor).
20 (D) during
- Why it is correct (The Key): “The entire flight” is a noun phrase indicating a timeframe.
- Error Analysis: (A) while (Common Mistake). (B) over (Strong Distractor). (C) inside (Structural Error).
GRAMMAR POINTS TO REMEMBER
1 Event vs. Action:
To optimize your “downtime,” you need to know how to describe the background timeframe correctly.
- Is it a noun representing an event? Use DURING.
- Example: During the flight, I read a book.
- Is it a full sentence describing an action? Use WHILE.
- Example: While we were flying, I read a book.
2 Compressing Sentences with “While + V-ing”:
If you (the subject) are doing two things at once, you can make your sentences punchy and professional by dropping the subject and using an active gerund.
- Full: You can reply to emails while you are waiting at the gate.
- Reduced: You can reply to emails while waiting at the gate.
3 The Ultimate Grammar Trap:
- Never mix the two structures! “During + V-ing” is always incorrect for active actions in standard English. You will lose points on proficiency exams if you say things like During reading, During flying, or During waiting. You must use While for these active verbs.