Billy: I’ve been fixing the puter for over three hours, but it still doesn’t work.
Nana: Why don’t you take a rest and try ? Maybe you’ll do better then.
A. early
B. finally
Clater
D. Once
网友回答
A. early
B. finally
(答案→)C. later
D. Once
解析：考查词汇。Early早的;finally 最后;later最近;Once曾经.
句意：我已经修理这台电脑超过三个小时了,当时它仍旧不能运行._为什么不休息一下，稍后再做尝试了？故选C。