what is he doing?what he is doing?如果前面是肯定,比如:1.let him think what ( )doing.[is he 还是he is ]2.I've no idea what ( ) talking about.[are you 还是 you are ]随便说下为什么?

Question

what is he doing?what he is doing?
如果前面是肯定,
比如:
1.let him think what ( )doing.[is he 还是he is ]
2.I've no idea what ( ) talking about.[are you 还是 you are ]
随便说下为什么?

Answer 1

he is
you are
宾语从句 跟在动词后面 从句用陈述语气