题目内容
【题目】My friend, Tom, left New York in 1976 and _____ since then.
A. hadn't been heard of
B. hasn’t been heard of
C. hasn't heard of
D. hadn't heard of
【答案】B
【解析】考查动词的时态和语态。since then常和现在完成时连用,Tom和hear为被动关系,句意:我的朋友汤姆1976年离开纽约,从那时起我就没有收到过他的消息。
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