Destination B1 đáp án Unit 20 cực chi tiết để các bạn tham khảo.

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I. Bài tập Destination B1 Unit 20

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 station.

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.

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.

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?

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.

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

→ …………………………………………………………………………………………..

II. Destination B1 đáp án Unit 20

A

1. B

2. B

3. C

4. A

6. A

7. C

8. B

B

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

1. has to

2. had to

3. don’t have to

4. have to

5. didn’t have to

6. Did/have to

D

1. A

2. C

3. B

4. A

5. A

6. C

7. A

8. B

E

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

Destination B1 đáp án Unit 20 kèm phần bài tập có sẵn trong cuốn Destination B1 – Grammar & Vocabulary do Công ty Cổ phần sách MCBooks giữ bản quyền xuất bản tại Việt Nam.

Link mua sách: https://mcbook.monaweb.dev/san-pham/cuon-sach-destination-b1/

Link đọc thử sách: https://drive.google.com/file/d/1Uq7XRh6EidaFaVF43CcPpgUkIiBuxjz1/view

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