ls this your bag 改成一般疑问句 肯定回答 否定回答 tony is chinese tony and

一般疑问句：ls this your bag
肯定回答：Yes,it is
否定回答：No,it isn't
一般疑问句：Is tony chinese?
肯定回答：Yes,he is
否定回答：No,he isn't
一般疑问句：Are tony and tom firends
肯定回答：Yes,they are
否定回答：No,they aren't