--I’m going to Hainan on vacation next week.--_.A. Have a good timeB. Not at allC. Thank y

问题补充：

--I’m going to Hainan on vacation next week.--_.

A. Have a good time

B. Not at all

C. Thank you

D. I have no idea

答案：

(答案→)A. Have a good time

B. Not at all

C. Thank you

D. I have no idea

解析： 略