单项选择题

"The effect of this medicine ______ by midnight," the doctor told Emma "You had better not try to read tonight."

A．will wear off
B．wears off
C．will have worn off
D．will be worn off
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单项选择题
He had no alternative but ______ to fight in the Middle East.
A．to go
B．go
C．going
D．went
单项选择题
John wishes now that he ______ the Spring Festival at home.
A．spent
B．had spent
C．has spent
D．did spend
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