问题
Not until the train pulled into the next station ______ that his briefcase had gone．
A:did Tom find
B:had Tom found
C:Tom had found
D:Tom found
B:had Tom found
C:Tom had found
D:Tom found
正确答案是：
同类题型
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What at that time ? —Playing football.
The text is very easy for you. There are _____ new words in it.
Just before the Chinese class, I suddenly realized that I forgot _______ my Chinese text book.