Question

When you don’t know a word, you can     in a dictionary.

A．write it down	B．look up it
C．write down it	D．look it up

Answer 1

D

解析试题分析：write it down写下，记下；look up it用法错误；write down it介词位置错误；look it up向上看，查阅。句意：当你不认识一个单词时，你可以在词典里面查查。故选D。
考点：考查短语辨析及代词的用法