单项选择题

We could do nothing but ______ till he came back.

A．to wait
B．waiting
C．wait
D．waited
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单项选择题
______ tomorrow, she would get there on Sunday.
A．Would she leave
B．If she leaves
C．Were she to leave
D．If she had left
单项选择题
John suggested ______ anything about it until they found out more facts.
A．not to say
B．not say
C．to say not
D．not saying
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