To get into the habit of smoking means one's own life short.A. to makeB. makesC. makingD.

问题补充：

To get into the habit of smoking means ones own life short.

A. to make

B. makes

C. making

D. make

答案：

(答案→)A. to make

B. makes

C. making

D. make

解析：英语学习中比较注重结构的对称性,故都用不定式。