单项选择题

Can you take the day off tomorrow -Well, I'll have to get ______ from my boss.

A．permission
B．permit
C．allowance
D．possession
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单项选择题
The ______ problem of bring a space-ship back from the moon has been solved.
A．technical
B．technological
C．technique
D．technology
单项选择题
As electric lines were destroyed by the storm, they were forced to ______ light for several days.
A．go over
B．go in for
C．go without
D．go out
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