You ________ in person; a telephone would have been enough.

A．couldn’t have comeB．needn’t have come
C．shouldn’t have comeD．mustn’t have come

B

解析試題分析：考查情態(tài)動詞的用法。題意：你本來不必親自來的，打個電話就行。needn’t have done sth.表示“做了沒有必要做的事”。選擇B項。
考點：情態(tài)動詞。

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