题目内容
—Tom graduated from college at a very young age.?
—Oh, he _______ have been a very smart boy then.?
A. could B. should C. might D. must?
D
解析:
must用于肯定句中表推测,肯定意义比较大。
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题目内容
—Tom graduated from college at a very young age.?
—Oh, he _______ have been a very smart boy then.?
A. could B. should C. might D. must?
D
must用于肯定句中表推测,肯定意义比较大。