An average of 130000 Chinese _________ abroad for studies every year over the past few years, boosting exchanges in the educational fields
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A
was going
B
have been going
C
has been going
D
are going
推荐题目
The two old sisters,        so long, held each other and burst into tears.
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A
being separated
B
having been separated
C
having separated
D
had been separated
We were listening closely to the lecture yesterday evening when suddenly the light ________.
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A
had been gone out
B
go out
C
was gone out
D
went out