题目内容
用适当的不定代词填空：Your computer is helpful to ______ of us. We often use it in class to work out maths problems.
答案：all
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每日10分钟口算心算速算天天练系列答案题目内容
用适当的不定代词填空：Your computer is helpful to ______ of us. We often use it in class to work out maths problems.
每日10分钟口算心算速算天天练系列答案