6)Bob said he was going to join our club but he didn't. He ____ his mind. A)can't have changed B)wouldn't have changed C)must have changed D)shouldn't have changed
7)You____ to town to see the film yesterday. It will be on TV tonight. A)needn't go B)had better not go C)should not go D)needn't have gone
8)We____ the letter yesterday,but it didn't arrive. A)must receive B)ought to receive C)must have received D)ought to have received
9)With all the work on hand,he____ to the cinema last night. A)mustn't go B)shouldn't have gone C)could not go D)couldn't have gone
10)Eve was late for class again. She ____earlier. A)should get up B)must get up C)need to get up D)should have got up
答案:CDDDD
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