A. Choose the sentence (A, B or C) which means the same as the first sentence.
1 We have to pay the electricity bill before Friday.
A We can pay it if we want to.
B We must pay it.
C We’ve already paid it.
2 You don’t need to buy me a birthday present.
A You must buy me a birthday present.
B It’s not necessary to buy me a birthday present.
C You mustn’t buy me a birthday present.
3 I have to do some work on my project this evening.
A I haven’t got time to do the work.
B I’ve already done the work.
C I need to do the work.
4 Lenny didn’t have to see the head teacher after all.
A It wasn’t necessary for Lenny to see the head teacher.
B Lenny went to see the head teacher.
C Lenny is waiting to see the head teacher.
5 Students mustn’t run in school buildings.
A They can run if they want to.
B Students don’t like running.
C Running isn’t allowed.
6 All passengers must fasten their seatbelts.
A They have to fasten their seatbelts now.
B They don’t have to fasten their seatbelts.
C They can fasten their seatbelts.
7 Mr Reed had to go to the police station to answer some questions.
A Mr Reed was able to go to the police static
B Mr Reed forgot to go to the police station.
C Mr Reed was obliged to go to the police station.
8 It’s kind of you to offer to help, but you really don’t need to.
A I don’t want you to help me.
B Your help isn’t necessary.
C You won’t be able to help me.
Answer
1 B 2 B 3 C 4 A 5 C 6 A 7 C 8 B
B. Circle the correct word or phrase.
1 ‘Smoking isn’t allowed in the airport.’
You mustn’t / don’t have to smoke in the airport.
2 ‘It’s not necessary to come to the train station to meet me.’
You have to / don’t have to meet her at the train station.
3 ‘We were forced to wait for over two hours in the rain!’
They had to / didn’t need to wait for over two hours in the rain.
4 ‘The instructions tell you to write in pencil.’
You must / needn’t write in pencil.
5 ‘You can contact us by either phone or e-mail.’
You mustn’t / don’t have to phone them.
6 ‘In my country, you can carry your passport with you if you want, but it’s not necessary.’
In her country, you don’t need to / mustn’t carry your passport with you.
7 ‘My grandfather was made to start work when he was just fourteen years old.’
He had to / must start work when he was just fourteen years old.
8 ‘It’s not necessary to book a hotel; you can stay in our spare room.’
You mustn’t / don’t have to stay in a hotel.
Answer
1 mustn’t 2 don’t have to 3 had to
4 must 5 don’t have to 6 don’t need to
7 had to 8 don’t have to
C. Complete using the correct form of have to. You may have to use some negative forms.
1 Jade can’t come out tonight. She ……………………… look after her little brother.
2 I didn’t have enough money, so I ……………………… borrow some from Yuri.
3 It’s raining really hard, but luckily we ……………………… go out this evening.
4 To start the laptop you ……………………… press the power button.
5 Robbie worked last weekend, but I ……………………… .
6 …………………. you ………………….. go to piano lessons when you were younger?
Answer
1 has to 2 had to 3 don’t have to
4 have to 5 didn’t have to 6 Did/have to
D. Match the sentences with the explanations. You have to use some of the explanations more than once.
1 ‘Someone is at the door. It must be Mrs Johnson from next door.’ ……………
2 ‘Lena might not know where the cinema is.’ ……………
3 ‘Dad should know what the capital of New Zealand is.’ ……………
4 ‘Greg can’t be in the final! He’s a terrible player!’ ……………
5 ‘The dog is wet. It must be raining outside.’ ……………
6 ‘We may go to the Canary Islands for Easter.’ ……………
7 ‘Ken must like that film. He’s seen it six times!’ ……………
8 ‘Barry ought to be able to cook Chinese food. He lived there for two years.’ ……………
A I’m almost certain.
B It’s probable.
C Maybe/ Perhaps.
Answer
1 A 2 C 3 B 4 A 5 A 6 C 7 A 8 B
E. Rewrite the sentences using the words given.
1 You’re expecting David to ring. The phone rings. must
‘……………………………………………….. .’
2 Anna is a better runner than Rula. You think Anna will probably win the race tomorrow. should
‘……………………………………………….. .’
3 A letter arrives. It’s possible that it’s from your cousin, Janice. could
‘……………………………………………….. .’
4 There’s a knock at the door. Your mum says it might be Colin, but you know Colin is on holiday. can’t
‘……………………………………………….. .’
5 You see someone wearing a costume. You think there’s a strong probability that she’s going to a fancy-dress party. must
‘……………………………………………….. .’
6 Your sister is looking for her hairbrush. You think it’s possible that it’s in the living room. might
‘……………………………………………….. .’
7 You’re waiting for Harriet to arrive. You think she’ll probably be there in half an hour. should
‘……………………………………………….. .’
8 You’re talking about why James seems to be sad. You think it’s possible he’s in trouble at school. could
‘……………………………………………….. .’
Answer
1 It/That must be David
2 Anna should win the race tomorrow
3 It/The letter could be from (my cousin) Janice
4 It can’t be Colin
5 She must be going to a fancy-dress party
6 It/Your hairbrush might be in the living room
7 Harriet/She should be here in half an hour
8 James/He could be in trouble at school
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