题目内容：

Have you [ ] been to Paris before?1.never 2.ever 3.once 4.yet

优质解答

ever 曾经

追问：

It is seven .the Smiths [ ]breskfast 1.has 2.have 3.is having 4.are having

追答：

4. are having the Smiths是指史密斯一家或史密斯夫妇,即the +姓氏表示一家人或夫妇,是复数，所以选第4个。