—Chris is very clever and never wastes any time doing useless things．
—No he always es first in the examinations
A. wonder
B. question
C. doubt
D. problem
网友回答
(答案→)A. wonder
B. question
C. doubt
D. problem
解析：句意：--Chris是聪明从不浪费时间做没有用的事情。--难怪他总是在考试中总是考试第一。这里是固定句式，it is no wonder that +句子，这里省略了it is that，故选A。