His MP5 is very useful ?A. isn’t itB. is itC. does itD. doesn’t it

问题补充：

His MP5 is very useful,?

A. isn’t it

B. is it

C. does it

D. doesn’t it

答案：

(答案→)A. isn’t it

B. is it

C. does it

D. doesn’t it

解析：此题考查反意疑问句的基本结构。它有两部分组成，前肯后否，前否后肯。His MP5 isvery useful，是肯定句，故后半部分要用否定句。又因前句使用的是系动词be的形式，故后半句要用be，故选A。