— Show me your permit, please.— Oh, it"s not in my pocket. It ________.[ ]A.

题型：同步题难度：来源：

— Show me your permit, please.
— Oh, it"s not in my pocket. It ________.[     ]
A. might fall out
B. could fall out
C. should have fallen out
D. must have fallen out

答案

举一反三

— Tom hasn"t turned up yet. He might have got lost.
— No, he ________. His car has got a GPS.[    ]
A. must not have got lost
B. wouldn"t have got lost
C. can"t have got lost
D. shouldn"t have got lost

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— Where is Bob? I cannot find him anywhere.
— He ________ have been off long. I heard him make a call just now. [     ]
A. shouldn"t
B. can"t
C. mustn"t
D. needn"t

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He ________ a big fortune, but he was too lazy to seize the opportunity.[    ]
A. can have made
B. could have made
C. must have made
D. ought have made

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— Do you still remember the day when we went to the Great Wall?
— I can"t remember it well, but ________ it have been sometime last year?[ ]

A. would
B. must
C. could
D. should

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What a pity! Considering his intelligence and diligence, he ________ a higher grade.[     ]
A. can have achieved
B. must have achieved
C. need have achieved
D. might have achieved

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