问题补充：
--- Is this your bike?
--- No,Itsbike.
A. this isn , Li Leis
B. this is, Li Leis
C. it isn , Li Leis
D. it is, Li Leis
答案：
A. this isn , Li Leis
B. this is, Li Leis
(答案→)C. it isn , Li Leis
D. it is, Li Leis
解析：此题重点考查一般疑问句的回答及名词所有格，以Is this/that...?一般疑问句的回答不能用this/that,排除A、B，否定回答用NO，it isn’t，排除D，故选C
