单项选择题

The new bill will come into ()on the day it is passed.

A. effect
B. use
C. service
D. existence

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单项选择题

不同的一项是（）

A.spell
B.telephone
C.she
D.very

单项选择题

—Are you going to attend the meeting —I’m not sure, I () go for a business trip instead.

A. would
B. should
C. might
D. must

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