If you don't know the word, you can ____

试题详情及答案解析

If you don't know the word, you can _____ in the dictionary.

A．look it after	B．look it up
C．look for it	D．look at it

答案：B

试题分析：句意：如果你不知道这个单词，可以再字典上查。look after照顾；look up查阅；look for 寻找；look at看。所以选B。
考点：考查动词词组辨析。