题目内容
There are two rooms on the first floor, _____ is used as a guest room .
A. a smaller of which B. a smaller of them
C. of which the smaller D. the smaller of them
C
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题目内容
There are two rooms on the first floor, _____ is used as a guest room .
A. a smaller of which B. a smaller of them
C. of which the smaller D. the smaller of them
C