问题 选择题

Good friends as we are, I still find her difficult to understand ________.

A.at one time

B.at a time

C.at times

D.at the time

答案

答案:C

短语辨析。   A. 曾经 B. 每次 C. 有时;偶尔 D.在那时。句意:虽然我们是好朋友,我仍旧发现他有时很难理解。故选C。

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