Are you sure they will come back___?正确答案是A为什么?

Are you sure they will come back___?正确答案是A为什么? are you sure they will come back___?A.before long B.long bef are you sure ()they will come Are you sure your mother will come?they asked(转换为间接引语） 1.Tom asked:"Are you sure your mother will come?" They are sure that she will win.为什么有that are you sure they are I'm sure they will come. 英语翻译是Are you sure of what you will do tomorrow?么 但是为什么不是 "wh I'm sure if you come here,you will find how nice they wil be 改错Do you sure they will come to my birthday party They are ___ a new kind of textbook in some schools.正确答案为什么是