问题描述：
a pair of glasses 代词要用it还是they
有这么一道题目：
I ordered an extra pair (of glasses) for her,and _____ should be ready soon.
问横线上应该填it还是they呢?
并且要说明原因哦~
有这么一道题目：
I ordered an extra pair (of glasses) for her,and _____ should be ready soon.
问横线上应该填it还是they呢?
并且要说明原因哦~
问题解答：
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