题目内容
Work hard, ______ you won’t catch up with your classmates.
A. but B. so C. or D. and
C or在该句中的意思是“否则”
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题目内容
Work hard, ______ you won’t catch up with your classmates.
A. but B. so C. or D. and
C or在该句中的意思是“否则”