单项选择题

My sister has been working in that factory ever（）it was set up.

A．since
B．while
C．when
D．fill

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单项选择题
Hurry up! Otherwise the play（）by the time we got there.

A．will start
B．will have started
C．has started
D．starts
单项选择题
（）in Hangzhou for more than ten years, he knew the city quite well.>

A．Living
B．Lives
C．Having lived
D．Lived
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