—I don’t know the new word.—It doesn’t matter you can in the dictionary. A. look up it B

问题补充：

—I don’t know the new word.

—It doesn’t matter, you can in the dictionary.

A. look up it B. look it up C. look for it

答案：

解析：考查动词短语的辨析。look for的意思是“寻找”；look up的意思是“查字典”，跟代词时应该放在look与up的中间，句意“你可以在字典中查一下它”，因此，答案为B项。