【題目】I thought it hard to complete the project then, but I ________ my mind.

A. will change B. would changed

C. have changed D. had changed

【答案】C

【解析】考查時態(tài)。句意：我那時覺得很難完成這個項目，但是我已經(jīng)改變了我的想法。根據(jù)句意，改變想法是過去的動作，但是和現(xiàn)在還有關系，即對現(xiàn)在有一定的影響，并且翻譯成“已經(jīng)”，符合這些特征的時態(tài)即為現(xiàn)在完成時。故選C。

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