B. The exam must have been difficult C. The exam need have been difficult. D. The exam should have been difficult much. 11. Perhaps George went shopping. A. George should have gone shopping. B. George must have gone shopping. C. George might have gone shopping. D. George need have gone shopping. 12. Daisy went on a diet, but it wasn’t necessary. A. Daisy mustn’t have gone on a diet B. Daisy might not have gone on a diet. C. Daisy needn’t have gone on a diet. D. Daisy might not have gone on a diet. 13. Mary took a taxi from home to school, but it wasn’t necessary. A. Mary mustn’t have taken a taxi from home to school B. Mary needn’t have taken a taxi from home to school C. Mary shouldn’t have taken a taxi from home to school D. Mary might not have taken a taxi from home to school 14. It was possible that Peter phoned me at midnight yesterday. A. Peter must have phoned me at midnight yesterday B. Peter might have phoned me at midnight yesterday C. Peter need have phoned me at midnight yesterday D. Peter should have phoned me at midnight yesterday 15. Tom got up early on Sunday morning, but it wasn’t necessary. A. Tom mustn’t have got up early on Sunday morning B. Tom might not have got up early on Sunday morning C. Tom needn’t have got up early on Sunday morning D. Tom couldn’t have got up early on Sunday morning 16. Jack made a decision immediately, but it was not necessary. A. Jack needn’t have made a decision immediately B. Jack couldn’t have made a decision immediately C. Jack shouldn’t have made a decision immediately D. Jack mustn’t have made a decision immediately 17. Passengers walked on the line yesterday, but this was prohibited A. Passengers shouldn’t have walked on the line yesterday B. Passengers needn’t have walked on the line yesterday C. Passengers mustn’t have walked on the line yesterday D. Passengers couldn’t have walked on the line yesterday 18. Peter fed the animals in the zoo, but this was prohibited A. Peter shouldn’t have fed the animals in the zoo B. Peter needn’t have fed the animals in the zoo C. Peter mustn’t have fed the animals in the zoo D. Peter couldn’t have fed the animals in the zoo 19. She arrived at the meeting one hour earlier, but it wasn’t necessary. A. She shouldn’t have arrived at the meeting one hour earlier B. She needn’t have arrived at the meeting one hour earlier C. She couldn’t have arrived at the meeting one hour earlier D. She might not have arrived at the meeting one hour earlier 20. Perhaps Mary left her car unlocked. A. Mary should have left her car unlocked. B. Mary might have left her car unlocked. C. Mary must have left her car unlocked. D. Mary need have left her car unlocked. 21. It’s impossible that you saw Joe in the town.
A. It couldn't have been Joe you saw in the town B. It needn't have been Joe you saw in the town C. It shouldn't have been Joe you saw in the town D. It mustn’t have been Joe you saw in the town 22. It’s impossible that it rained last night. A. It needn’t have rained last night B. It might not have rained last night C. It mustn’t have rained last night D. It shouldn’t have rained last night 23. It’s possible that Peter didn’t receive my message. A. Peter might not have received my message. B. Peter mustn’t have received my message. C. Peter shouldn’t have received my message. D. Peter needn’t have received my message. 24. It’s possible that Mary phoned while we were out. A. Mary should have phoned while we were out. B. Mary must have phoned while we were out. C. Mary might have phoned while we were out. D. Mary need have phoned while we were out. 25. I regret having behaved so badly during the lesson. A. I shouldn’t have behaved so badly during the lesson. B. I needn’t have behaved so badly during the lesson. C. I might not have behaved so badly during the lesson. D. I can’t have behaved so badly during the lesson. 26. It is impossible for me to finish reading the book A. I mustn’t have finished reading the book. B. I needn’t have finished reading the book. C. I might not have finished reading the book. D. I shouldn’t have finished reading the book. 27. It was unnecessary for you to study this subject. A. You needn’t have studied this subject. B. You shouldn’t have studied this subject. C. You mustn’t have studied this subject. D. You can’t have studied this subject. 28. It’s possible that I left the English book at home. A. I should have left the English book at home. B. I must have left the English book at home. C. I need have left the English book at home. D. I could have left the English book at home. 29. The man you saw wasn’t Jack. He’s been abroad since the summer. A. You couldn’t have seen Jack. He’s been abroad since summer. B. You mustn’t have seen Jack. He’s been abroad since summer. C. You might not have seen Jack. He’s been abroad since summer. D. You shouldn’t have seen Jack. He’s been abroad since summer. 30. It was a mistake of you not to bring your umbrella. A. You should have brought your umbrella. B. You may have brought your umbrella. C. You could have brought your umbrella. D. You might have brought your umbrella.
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