题目内容

【题目】Mary devoted as much time as she could _________for the elderly.

A. care B. caring C. to care D. to caring

【答案】D

【解析】

试题句意:玛丽投入尽可能多的时间来照顾老人。devote time to doing sth“投入时间做某事”,故此处用to+caring,故选D。

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