单项选择题

It is time that the children ______.

A．went to bed
B．should go to bed
C．going to bed
D．have to go to bed
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单项选择题
The lost wallet is to be kept here until the loser comes to ______ it.
A．call for
B．call on
C．call out
D．call up
单项选择题
My Chinese teacher is at least ______ age ______ my father if he is not younger than him.
A．the same; with
B．the same; as
C．as; as
D．equal; to
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