问题

How many ______ socks do you need? [ ]
A:pair
B:Pairs
C:pairs of
D:a pair of
B:Pairs
C:pairs of
D:a pair of
正确答案是:
同类题型
What kind of music do you like? —I like music _____ I can sing along with.
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Don’t __ about the result so much. I’m sure you can pass it easily.
look at the lights in our classroom, please go and .
Mr. Green ____________ to the manager now. You’d better call him later.