第1个回答 2014-06-14
No, they aren't. Their pens are blue.
第2个回答 2014-06-14
No,it's not, their pens are blue.
追答第一个是错的啊，你怎么采纳了
追问哦
第3个回答 2014-07-19
对不起啊，我打错了，这个才是吧，No, no, they pen is blue?
第4个回答 2014-06-14
肯定句，No,they aren't。their pens are blue.
疑问句，No,they aren't。 are their pens blue?
第5个回答 2014-06-14
no,them pens are blue