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这句句子选什么?
To our relief,____happened that no one was in when the explosion occurred.
A.what B.this C.it D.there
为什么?另外说下C和D的区别,
人气:446 ℃ 时间:2020-06-10 00:31:29
解答
选C啊.It 做形式主语,That从主是真正主语.
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