1. (2019八下·九龙坡月考) 听对话，选择正确的答案。

Can I help you?<br />Yes.<br />How much are the onions?<br />They are 6 yuan a kilo.<br />Oh, that's cheap.<br />I'll take 2 kilos, please.<br />Question.<br />How much should the man pay for the onions?