单项选择题


A．though
B．while
C．since
D．as
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单项选择题
A．seldomB．lessC．probablyD．certainly
A．seldom
B．less
C．probably
D．certainly
单项选择题
A．go aboutB．go overC．go in forD．go through
A．go about
B．go over
C．go in for
D．go through
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