题目内容
找出能替换划线部分的词或词组:
Look out while you are crossing the street.
[ ]
A. Look behind B. Be careful
C. Look up D. Be carefully
答案:B
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题目内容
找出能替换划线部分的词或词组:
Look out while you are crossing the street.
[ ]
A. Look behind B. Be careful
C. Look up D. Be carefully