问题补充:
(·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
答案:
A. wastes
B. shares
(答案→)C. spares
D. makes
解析: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。