I think smoking good for you.A. don’t; isB. don’t; areC. /; aren’tD. /; isn’t

问题补充：

I think smoking good for you.

A. don’t; is

B. don’t; are

C. /; aren’t

D. /; isn’t

答案：

(答案→)A. don’t; is

B. don’t; are

C. /; aren’t

D. /; isn’t

解析：think 引导的宾语从句，否定要前移，同时动名词短语作为主语相当于三单形式，故选答案为A