未分类题
The police discovered the thiefs hide-out two days later, ______, however, the thieves had disappeared.
A.by that time
B.then
C.when
D.by which time
A.
A.by
B.then
C.when
D.by
【参考答案】
D
首先应该确定,此处需要一个关联词语,将前后两个句子连接起来,构成主从复合句,否则两句之问没有连接手段。这样就......
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