—Tom graduated from college at a very young age.—Oh,he__________have been a very

题干

—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

上一题下一题 0.64难度单项选择更新时间:2013-06-21 09:20:38

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