题目内容
Lo is poor at painting pictures. He _______ paint them well.
A．mustn't B．must C．can't D．can
C
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阶梯计算系列答案题目内容
Lo is poor at painting pictures. He _______ paint them well.
A．mustn't B．must C．can't D．can
C
阶梯计算系列答案