单项选择题

It's high time we ______ something to stop traffic accident.

A．do
B．will do
C．did
D．must do
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单项选择题
Encouragement through praise is the most effective method of getting people ______ their best.
A．do
B．to do
C．doing
D．done
单项选择题
You don't object ______ you by your first name, do you
A．for me to call
B．me to call
C．to my calling
D．my calling
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