The purpose of new technologies is to make life easier ­ it more difficult.A. not mak

问题补充：

The purpose of new technologies is to make life easier, ­ it more difficult.

A. not make

B. not to make

C. not making

D. don’t make

答案：

A. not make

(答案→)B. not to make

C. not making

D. don’t make

解析：考查不定式作表语。句意：新技术的目的是使生活更容易，不是使生活更难。根据语义后面的结构应与to make life easier结构一样，否定式应在to前面加not,故选B。