I began watching here an hour ago, but now nothing yet.A．happensB．will happenC．happenedD．has happened 题目和参考答案——青夏教育精英家教网—

题目内容

I began watching here an hour ago, but now nothing _______ yet.

A．happens	B．will happen
C．happened	D．has happened

解析试题分析：句意：一小时前我开始看这里，但是现在还没有发生任何事。由yet.可知该用现在完成时，所以选D。
考点：考查动词时态。

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