单项选择题

Please return in an hour. I'll be ready ______ then.

A．till
B．by
C．at
D．on
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单项选择题
Please ______ her of that important meeting again. She is always forgetting things.
A．warn
B．relieve
C．remind
D．inform
单项选择题
They haven't found an apartment. So they ______ with us for the time being.
A．would stay
B．will stay
C．are staying
D．will be staying
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