问题
选择题
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
答案：B
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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：B