题目内容
--- Did you find the missing couple in the mountain yesterday?
--- No, but we _______ to get in touch with them ever since.
A. have tried B. had tried
C. have been trying D. had been trying
C
【解析】
试题分析:考查动词的时态。句意:昨天你们找到失踪的那对夫妇了吗?没有,但我们一直在努力联系他们。根据 ever since可知用现在完成时,再根据语境可知用现在完成时的进行时态,故选C项。
考点 : 考查动词的时态
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