They u_____ to be good friends,but they aren't now
They must be there now,aren't they?这里为什么不是mustn't they而是aren
They aren,t there now
-----They were good friends before,but they
They were afraid to live alone.Now they aren't afraid to do
They aren't here now; they have gone to the _______(doctor).
they are having good time,aren't they?是什么句子
Aren't they going to the form?
They ____here just now,but they ___at home now.(be)
They aren't to do what they want to do
they aren't
They aren't English
no,----(they)aren't.