新概念英语第一册双数课答案

6 That's right. This is something I must decide about. Lesson 126 A

1 Does she have to decide immediately? She doesn't have to decide immediately. 2 Must she decide immediately? She needn't decide immediately. 3 Do we have to take a taxi? We don't have to take a taxi. 4 Must we take a taxi? We needn't take a taxi. B

1 I have to telephone him, too. 2 Mary has to wait for him, too. 3 Jim has to meet her ,too.

4 Tom and Mary have to travel by ship, too. C

1 Do you really have to telephone him? 2 Does Mary really have to wait for him? 3 Does Jim really have to meet her?

4 Do Tom and Mary really have to travel by ship? Lesson 128 A

1 He has to be here at six o'clock. 2 I think he is probably busy.

3 He has to be at the office early tomorrow. 4 I think he is probably sleeping. 5 I think he is probably French. 6 He has to be in France next week. 7 I think he is probably an engineer. B

1 I don't think so. She can't be Italian. She must be Greek.

2 I don't think so. He can't be English. He must be American.

3 I don't think so. They can't be Canadian. They must be Australian.

4 I don't think so. He can't be a mechanic. He must be an engineer.

5 I don't think so. He can't be a bus conductor. He must be a bus driver.

6 I don't think so. He can't be a sales rep. He must be the boss.

7 I don't think so. He can't be twenty-four. He must be thirty.

8 I don't think so. They can't be five.

They must be seven.

9 I don't think so. He can't be seventy-six. He must be over eighty.

10 I don't think so. She can't be fifty-five. She must be under fifty.

11 I don't think so. It can't be the 21st today. It must be the 20th.

12 I don't think so. It can't be Tuesday today. It must be Wednesday.

13 I don't think so. It can't be the 2nd today. It must be the 3rd.

14 I don't think so. It can't be cheap. It must be expensive.

15 I don't think so. It can't be easy. It must be difficult.

16 I don't think so. She can't be old. She must be young.

17 I don't think so. They can't be early. They must be late.

18 I don't think so. He can't be reading. He must be sleeping.

19 I don't think so. They can't be listening to the radio. They must be watching television.

20 I don't think so. She can't be retiring. She must be looking for a new job. Lesson 130 A

1 He didn't come to work yesterday. He must have been ill.

2 He didn't come to the office this morning. He had to stay a home. 3 I don't think she was Austrian. She must have been German. 4 I lost my pen so I had to buy a new one. 5 He forgot his case so he had to return home.

6 She didn't hear the phone. She must have been sleeping. B

1. I don't think they were. They can't have been Canadian. They must have been Australian.

2. I don't think she was. She can't have been Finnish. She must have been Russian.

3. I don't think they were. They can't have been Japanese. They must have been Chinese.

4. I don't think they were. They can't have been butchers. They must have been bakers.

5. I don't think she was. She can't have been a dentist. She must have been a doctor.

6. I don't think he was. He can't have been a sales rep. He must have been the boss.

7. I don't think she was. She can't have been seventeen. She must have been twenty-one.

8. I don't think they were. They can't have been five. They must have been seven.

9. I don't think he was. He can't have been seventy-six. He must have been over eighty.

10. I don't think she was. She can't have been fifty-five. She must have been under fifty.

11. I don't think it was. It can't have been the 17th yesterday. It must have been the 16th yesterday.

12. I don't think it was. It can't have been Tuesday yesterday. It must have been Wednesday yesterday.

13. I don't think it was. It can't have been the 19th yesterday. It must have been the 20th yesterday.

14 I don't think it was. It can't have been cheap. It must have been expensive.

15 I don't think it was. It can't have been easy. It must have been difficult.

16 I don't think she was. She can't have been old. She must have been young.

17 I don't think he was. He can't have been ill. He must have been tired.

18 I don't think they were. They can't have been listening to the radio. They must have been watching television.

19 I don't think she was. She can't have been retiring. She must have been looking for a new job.

20 I don't think they were. They can't have been sitting. They must have been standing. Lesson 132 A

1 Yes, Martin is talking to Gary. 2 They may go abroad.

3 Gary's wife wants to go to Egypt. 4 They will travel by sea. 5 Yes, it may be cheaper. 6 Yes, it takes a long time.

7 Because his wife worries too much. B

1 I'm not sure. They may be Australian. 2 I'm not sure. She may be Russian. 3 I'm not sure. They may be Chinese.

4 I'm not sure. They may have been bakers. 5 I'm not sure. She may have been a doctor. 6 I'm not sure. He may be the boss. 7 I'm not sure. She may be twenty-one. 8 I'm not sure. They may have been seven.

9 I'm not sure. He may have been over eighty. 10 I'm not sure. She may have been under fifty. 11 I'm not sure. It may be the 16th today.

12 I'm not sure. It may have been Wednesday yesterday. 13 I'm not sure. It may be the 20th today. 14 I'm not sure. It may be expensive.

15 I'm not sure. It may have been difficult. 16 I'm not sure. She may have been young. 17 I'm not sure. He may have been tired.

18 I'm not sure. They may be watching television.

19 I'm not sure. She may have been looking for a new job. 20 I'm not sure. They may be standing. Lesson 134 A

1 Yes, she has. 2 A reporter.

3 She says she is going to retire. 4 Because she is going to retire. 5 Kate bought a newspaper.

6 Miss Marsh arrived at London Airport.

7 She was wearing a blue dress and a mink coat. B

1 He said he was busy. 2 He said she was cold.

3 She said the book was interesting. 4 He said they were hungry. C

1 He told me he was working. 2 They told me she was leaving. 3 She told me they were joking. 4 He told me Tom was waiting. D

1 He told me he had met him. 2 He told me he had lost it. 3 She told me it had stopped. 4 They told me she had arrived. Lesson 136 A

1 She is still not sure. 2 No, she can't.

3 His name is Carlos.

4 They will get married next week. 5 She is staying at her London Hotel. 6 Yes, she does.

7 Liz says the news is sensational. B

1 He said Penny would open the window. 2 She said she would change some money. 3 He said it would rain tomorrow. 4 He said they would arrive later. 5 She said he would repair it. 6 He said he would write to him. C

1 He told me he could understand English. 2 She told me she could recognize him. 3 They told me they could afford it. 4 She told me she could remember him. 5 He told me he could change it. 6 He told me he could finish it. D

1 They said they might arrive tomorrow. 2 He told me he might retire.

3 She said she might telephone him. 4 He told me she might sell it.

5 He said she might recognize you. 6 She told me she might finish it. Lesson 138 A

1 He is doing the football pools.

2 No, he has never won anything on the football pools.

3 He will buy his wife a mink coat if he wins a lot of money. 4 No, she doesn't.

5 She wants to see the world.

6 He will try and win the football pools again. 7 Yes, it's only a dream. 8 It all depends on‘if’. B

1 If he misses the bus, he'll take a taxi.

2 If he doesn't sell his old car, he won't buy a new one. 3 If they offer me more money, I'll work less. Lesson 140 A

1 Yes, Graham Turner is speaking to John Smith. 2 Mary invited Mr. and Mrs. Turner to dinner.

3 Graham Turner said he would be there at six o'clock. 4 Because his boss wanted him to do some extra work. 5 No, he doesn't.

6 Mr. Turner's wife wants to know if Mary needs any help. B

1 I want to know if you are late. Tell me if you are late. I want to know why you are late. Tell me why you are late. 2 I want to know if you are dirty. Tell my if you are dirty.