An average of 130000 Chinese abroad for studies every year over the past few yea
来源:网络
时间:
推荐文章

An average of 130000 Chinese _________ abroad for studies every year over the past few years, boosting exchanges in the educational fields
| A.was going | B.have been going |
| C.has been going | D.are going |
试题答案
B
解析试题