Are they going to have a birthday party?是什么意思?

Are they going to have a birthday party?是什么意思? They are going to a birthday party next Sunday 改为否定句 we are going to have a party to c__lydia's birthday 一道英语句型题They will/shall have a party.They are going to have a 2.are you going to have a birthday party she acked me she ac are you going to have a birthday they are going to have a party sundays (划线在they) she ()(be)going to have a birthday party I am going to have a birthday party We are going to give her a () birthday party. I'm going to have a birthday party 对"a birthday party "提问 They are going to celebreat Lisa's birthday是什么意思