99. If you study harder, you will catchthe others in the class.A. upB. up withC. up ofD. T

发布时间：2020-08-16 06:11:08


99. If you study harder, you will catch       the others in the class. 
A. up
B. up with
C. up of
D. To

网友回答

A. up
(答案→)B. up with
C. up of
D. To
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