单项选择题

The new law 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
We came into this field late, so we must work hard to______the lost time.
A．make up for
B．make out
C．keep up with
D．put up with
单项选择题
Peter has planned to______some money every month so that he can buy a used car next year.
A．set aside
B．set up
C．set in
D．set along
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