We need to take action instead of waiting here for problems .A. to solveB. to be solvedC.

发布时间：2020-08-16 09:01:53

We need to take action instead of waiting here for problems         .
A. to solve
B. to be solved
C. solved
D. being solved

网友回答

A. to solve
(答案→)B. to be solved
C. solved
D. being solved
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