单项选择题

Tom should make every（）to study well.

A.affect
B.effect
C.afford
D.effort

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单项选择题

I don' t like either of the two dresses. Please show me（）.

A、 the other
B、 other one
C、 one another
D、 another

单项选择题

Rats are harmful. We must get rid（）them.

A、 with
B、 of
C、 off
D、 against

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