【題目】_____ of their bad habits, the boys switched from being dependent on their parents to _____ for others.

A. Having rid; sacrificing B. To rid; sacrifice

C. Rid; sacrificing D. Having been rid; sacrifice

【答案】C

【解析】

試題分析：句意：戒掉他們的壞習慣后，這些男孩子從對父母的依賴轉向了為他人犧牲。第一個空，rid of 是一個固定搭配，意思是：擺脫掉…；從…解脫，rid of 是祈使句開頭， 動詞原形。第二個空， switch from…to…也是固定搭配，意思是：從…轉向…。to是介詞后面用doing形式；故選C。

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