题目内容
If you don’t know a word, you must _______ the word in a dictionary.
A. look up B. look down C. look over D. look out
A 【解析】句意:如果你不认识单词,你必须查字典。A. look up查阅;B. look down俯视;C. look over检查;D. look out小心、注意。look up the word in a dictionary查词典。故选:A。
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