I can't go out to play because I my homework yet．( )A．don't finishB．won't finishC．didn't finishD．haven't finished 题目和参考答案——青夏教育精英家教网—

2．I can't go out to play because I______my homework yet．（　　）

	A．	don't finish		B．	won't finish
	C．	didn't finish		D．	haven't finished

分析我不能出去玩因为我还没有完成作业．

解答答案：D．
根据I______my homework yet，可知这里yet表示已经的意思，一般用在现在完成时的否定句和疑问句中，所以句子使用现在完成时；现在完成时的结构：主语+have/has+过去分词+其它；它的否定形式为have/has not+过去分词+其它，在这里主语是I，所以应该使用have，再根据I can't go out to play because I______my homework yet，可知这里的意思是我不能出去玩因为我还没有完成作业，强调对于现在造成的影响，这里应该用现在完成时的否定形式，故选D．

点评本题考查了动词的时态．做题时，一定要特别关注有关的时间短语，这是判断句子时态的标志．在没有时间状语的情况下可以联系上下文根据语境来做出正确判断．

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