.--- I was lucky the win a gold medal in the800-metre race.--- You  ____ through hard training.
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A
must go
B
should go
C
must have gone
D
should have gone.
推荐题目
 If their marketing plans succeed,they ________ their sales by 20 percent.
#99749
A
will increase
B
have been increasing
C
have increased
D
would be increasing
I didn’t get into the two-hour quarrel; I know how it ______, though.
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A
would break out
B
has broken out
C
was breaking out
D
had broken out