题目内容
—How much shall I pay for the telephone call?
—You ______. It's free.
A. mustn't B. shouldn't C. don't have to D. can't
C
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口算心算速算应用题系列答案同步拓展阅读系列答案题目内容
—How much shall I pay for the telephone call?
—You ______. It's free.
A. mustn't B. shouldn't C. don't have to D. can't
C
口算心算速算应用题系列答案同步拓展阅读系列答案