When this boy was asked to copy down the sentence ten times he did nothing but deeply wit

问题补充：

When this boy was asked to copy down the sentence ten times, he did nothing but deeply with a blank look on his face.

A. sigh

B. sight

C. sign

D. signal

答案：

(答案→)A. sigh

B. sight

C. sign

D. signal

解析：考查词义辨析：A. sigh叹气，B. sight视力，风景，景色，C. sign标志， D. signal信号，句意：当男孩被要求把句子抄10遍，他只好深深的叹气脸上是茫然的表情。选A。