问题
选择题
| When you find some new words, you'd better _____ in the dictionary. |
A. look up it B. look up them C. look it up D. look them up |
答案
答案：D
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| When you find some new words, you'd better _____ in the dictionary. |
A. look up it B. look up them C. look it up D. look them up |
答案：D
