(2012·昆明高二檢測)It is well-known that proper amounts of exercises, if _______ regularly, will benefit our health.

A. being carried outB. carrying out

C. carried outD. to carry out

 

C

【解析】C 句意：據(jù)說如果有規(guī)律地進行適量的運動，對健康有益。carry out是及物動詞短語，與proper amounts of exercises之間是動賓關(guān)系，if條件句里省略了主語proper amounts of exercises，因此用過去分詞表示被動。

 

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