Question

When you meet some new words, you can ____ in your dictionary.

A．look it up

B．look up it

C．look them up

D．look up them

Answer 1

C

本题的含义是当你遇到一些新的单词，你可以在字典中查询它们，look up表示查询，后跟某物，若是名词在up前后都对，若是代词，只能放在up之前，本题为代词，代替前句的复数单词words，故用them。