Start out right away, _____you’ll miss the first train. 
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A
and
B
but
C
or
D
while
推荐题目
 _______he was laid off last year ______ how serious the economic crisis was.
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A
Not until…he realized
B
It was not until… when he realized
C
It is not until…that did he realize
D
It was not until …that he realized
Having a large family to support, Mr.Johnson had to work     in the evening.
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A
four another hours.
B
more four hours.
C
other four hours.
D
four extra hours.
 It was Alice and her friends who helped the homeless old woman,______?
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A
wasn’t it?
B
wasn’t she
C
didn’t they?
D
weren’t they?