问题

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
B: could have made
C: must have made
D: ought have made
正确答案是:
同类题型
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Why are you so anxious? It isn’t your problem _____.[ ]
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It was yesterday ____ I saw her and it was almost 10 o’clock ____ she arrived.