问题描述：
补全对话 May I help you,mandan?Yes,please.Do you have a yellow dress____ this?Yes ,Here it is.
补全对话 May I help you,mandan?Yes,please.Do you have a yellow dress____ this?Yes,Here it is.How much is it?The dress is ________sale for 30% off.this one is 70 yuan.
补全对话 May I help you,mandan?Yes,please.Do you have a yellow dress____ this?Yes,Here it is.How much is it?The dress is ________sale for 30% off.this one is 70 yuan.
问题解答：
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