【題目】—Does he work hard at his lessons?

—Yes, he ________ no effort, as far as I know.

A. wastes B. shares

C. spares D. makes

【答案】C

【解析】

C 考查動詞辨析。句意:他學習努力嗎?”“是的,據(jù)我所知,他不遺余力地學習。”spare no effort (to do sth.)“不遺余力(做某事)”,是固定短語。

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