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新概念英语第一册课后答案Lesson127~128
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 don't think so. He can't be reading. He must be sleeping.
19 I d on'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.
新概念英语第一册课后答案Lesson129~130
A
1 He must have been ill.
2 He had to stay at home.
3 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 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 l6th 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 c an'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.
新概念英语第一册课后答案Lesson131~132
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.