Question

(2013·福建南平二检)—Does he work hard at his lessons?
—Yes, he ________ no effort, as far as I know.

A．wastes	B．shares
C．spares	D．makes

Answer 1

C

选C　考查动词辨析。句意：“他学习努力吗？”“是的，据我所知，他不遗余力地学习。”spare no effort (to do sth.)“不遗余力(做某事)”，是固定短语。