She's back from Australia,_C__ she A wasn't B doesn't C isn't D hasn't

问题描述:

She's back from Australia,_C__ she
A wasn't B doesn't C isn't D hasn't

D

She's是she is的缩写
be back

She is back from Australia,isn't she?
当然是这样.
如果是完成时,
She has been back from Australia,hasn't she?