Mark needs to learn Chinese _______ his company is opening a branch in Beijing. 
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A
unless
B
until
C
although
D
since
推荐题目
. _____is known to us all, America is a developed country____ the first world.
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A
As; belonging
B
which; belonged
C
as; belonging to
D
which; belonged to
Tom  is _______John .    
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A
so clever a boy as
B
so a clever boy as
C
as a clever boy as
D
as clever a boy as﹡
_________ team wins on Saturday will go through to the national championships.
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A
No mater what
B
No matter which
C
Whatever
D
Whichever
The reason ________ he was late for the meeting is ________ his car broke down on the road.
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A
why; that
B
why; because
C
that; that
D
for which; because