Do you have any idea____?A.when she will arriveB.when she arrivesC.how will she arriveD.why hasn't she arrived请分析下考点和解题思路重点说下A和B又什么区别?

问题描述:

Do you have any idea____?
A.when she will arrive
B.when she arrives
C.how will she arrive
D.why hasn't she arrived
请分析下考点和解题思路
重点说下A和B又什么区别?