单项选择题

You may keep the dictionary as long as you like, ______ you keep it clean.

A．so long as
B．so far as
C．as well as
D．as soon as
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单项选择题
It's difficult to get a result entirely ______ with our wishes.
A．equivalent
B．correspondent
C．indifferent
D．relevant
单项选择题
The sun ______ , the campers began to prepare for the evening gathering.
A．to be set
B．being set
C．setting
D．has set
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