题目内容
（请给出正确答案）
A、he leaves
B、has he left
C、he left
D、did he leave
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更多“Only after the secretary saw the train disappear in sight_____________the railway station.”相关的问题
15 Ten years after the event, her death still remains a puzzle.
A mist
B fog
C mystery
D secret
Only after class_____to raise the question.
A.did he allowed
B.was he allowed
C.he was allowed
D.did he allow
A.assigned
B.resigned
C.designed
D.departed
After the class, students went out of the classroom one by one, but only Mary ___.
A、left
B、was left
C、has left
Only after the local residents become sick, ______ (化学品公司才开始清理污染场所).
Without their parents' permission, they kept their marriage_____until last year.
A．in secret
B．secretly
C．secret
D．secretary
What is meant by "peer-on-peer" in the second paragraph？
A．Acting as equals.
B．Peeking secretively.
C．Looking furtively.
D．Having more and more.
A friend of mine returned to his house after a holiday, only to find it ______.
A．to be broken into
B．had broken into
C．was broken into
D．had been broken into
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