这里的must 是表推测的, 教你一招, 你用Iam sure 这个插入语代进去即可You must have met uncle Wang in the shop yesterday,didn't you?=You , I am sure, met uncle Wang in the shop yesterday,didn't you?注意：...You , I am sure, have met uncle Wang in the shop yesterday，haven't you?这句话不是也有yesterday吗，为什么还用haven't you哦， 多写了， 去掉！！=You , I am sure, have met uncle Wang in the shop，haven't you?