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

試題分析：句意：新發(fā)明的目的是為了使生活更容易，而不是使生活更難。is to do sth, not to do sth 是要做……,而不是做……。所以要選C。
考點: 考查非謂語動詞的用法。