题目内容
She kept _________ hard at her physics and finally caught up with us.
A.work | B.worked | C.working | D.to work |
C
试题分析:句意:她在物理上继续努力,最终赶上我们。keep doing一直做某事,根据题意,故选C。
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题目内容
A.work | B.worked | C.working | D.to work |