题目内容
16.Since you haveexplained to us clearly,you don't have to repeat it.( explanation)分析 既然你给我们清晰的解释清楚了,你就不用再重复了,
解答 答案:explained.结合句意可知这里动作发生在过去,对现在造成一定的影响,故用现在完成时have/has+过去分词,explaination的动词是explain,故答案是explained.
点评 英语词性转换规律需要课下多积累总结.
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