The boy doesn’t know how to English words in a dictionary.
A. look up
B. look after
C. look at
D. look for
网友回答
(答案→)A. look up
B. look after
C. look at
D. look for
解析：此题重点考查look的相关的短语。Look up表示仰望或查询；look after表示照顾照料；look at表示看看；look for表示寻找。根据句意可知在字典里查询单词要用look up。