This project considered thoroughly and I’m sure it finished on time.A. must be; may be

问题补充：

This project considered thoroughly, and I’m sure it finished on time.

A. must be; may be

B. should be; can be

C. may be; must be

D. can be; should

答案：

A. must be; may be

(答案→)B. should be; can be

C. may be; must be

D. can be; should

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