Marry is not a diligent girl,for it is the forth time that she has been sleep in class,__?

问题描述:

Marry is not a diligent girl,for it is the forth time that she has been sleep in class,__?
a isn't she
b isn;t it
c hasn't she
d hasn't it
要说原因

isn;t it
对于for引导的原因状语从句提问.
在这个从句中,是提问主句部分.