第1个回答 2012-08-26
一般疑问:Are these pens yours?
肯定:Yes,they are
否定:No,they aren't.
第2个回答 2012-08-26
一般疑问句:Are these new pens?
肯定回答:Yes , they are.
否定句:These aren't new pens.
第3个回答 2012-08-26
are these new pens?
yes,there are
no,ther are not.
第4个回答 2012-08-26
Are these new pens?
Yes ,they are.
NO, they aren't