Which of the following is right?A.Could you tell me when he has been away?

问题描述:

Which of the following is right?A.Could you tell me when he has been away?
B.There many students want to take part in the school sports meeting
c.I hope you to come here again.
D.We were told that sound travels through air.
请教哪个是正确的,错的错在哪里?

正确的应是D.A.Could you tell me when he has been away?中when(指的是时间点)和完成时态不一起用,可改成Could you tell me when he left?或Could you tell me how long he has been away?B.There many students wa...