If you don't know a word , you can _____

试题详情及答案解析

If you don't know a word , you can ______ in a dictionary.

A．look it up	B．look at it
C．look it over	D．look them up

答案：A

试题分析：句意:如果你不知道一个单词，你可以在字典里查一查。look up 查找；look at 看；look over 仔细检查；D选项中them 代替复数的名词，但是题干中是单数，故D不对。根据句意可知选A。
考点：考查动词短语辨析。