Question

【题目】—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

【答案】C

【解析】句意：“他学习努力吗？”“是的，据我所知，他不遗余力地学习。”固定短语spare no effort(to do sth.)“不遗余力(做某事)”。