Question

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

A．not make

B．not making

C．not to make

D．do not make

Answer 1

C

试题分析：句意：新发明的目的是为了使生活更容易，而不是使生活更难。is to do sth, not to do sth 是要做……,而不是做……。所以要选C。
考点: 考查非谓语动词的用法。