they are pens改为复数句
they are pens改为复数句
They are pens(改为否定句)
they are pens改为单数句
Are they your pens? 单复数互换
these are pens (变复数句)
Are there some pens in the bag?改为一般疑问句,否定句 they are English
连词成句:are pens whose they
Are those pens改为单数句
I am sad 改为复数句,Is he happy?改为复数句,They are pretty改为单数句,We are
用they,pencils,are,pens.not,but连词成句!
what are they are pens
1.Whose pens are these?改为同义句