题目内容
If you don't know how ______ new words, _____ in the dictionary.
A. to spell; look up them B. spelling; look them up
C. to spell; look them up D. spelling; look up them
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题目内容
If you don't know how ______ new words, _____ in the dictionary.
A. to spell; look up them B. spelling; look them up
C. to spell; look them up D. spelling; look up them