单项选择题

John will not listen to you ______ you are right.

A．whether
B．since
C．unless
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单项选择题
I ______ housework when there was a knock at the door.
A．did
B．was doing
C．am doing
单项选择题
My wife often forgets ______ the door, but she remembered ______ it when she left yesterday.
A．closing; close
B．closing; to close
C．to close; closing
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