问题
rage of 130000 Chinese _________ abroad for studies every year overthe past few years, boosting exchanges in the educational fields
A:wasgoing
B:have been going
C:has beengoing
D:are going
B:have been going
C:has beengoing
D:are going
正确答案是：
同类题型
ntributionto botany, Joseph Banks had a flower _______him
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was about to walk over to Tom’ s seat when he ________ and left.
This kind of cup _______ of paper.
on came to my class every day, but his attitude _____ he was not really interested at all.