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题目
题型:不详难度:来源:
I don’t know _____ he will be back home.        
A. who
B. what
C. when
D. where

答案
C
解析
这题考查宾语从句连接词的选用,因为是I don’t know,所以用疑问词,因为有主谓宾,所以选疑问副词,地点是home,因此选C。句意是:我不知道他什么时候回来。选C。
核心考点
试题【I don’t know _____ he will be back home.        A. whoB. whatC. whenD. where】;主要考察你对连词等知识点的理解。[详细]
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