Составить рпедлжения a: /ever/be) on a package holiday? b: no,i /be) on once. a: dont forget to book tickets. b: /do) that. a: is the bus here? b: yes,/arrive). a: where is tom? b: /come in/yet). всё в present perfect.

You,be,already,just,yet. вроде бы так,надеюсь

А.Have you ever been on a package holiday?
B.No,I have never been on once.
A.Don't forget book tickets.
B.I have already done that.
A.Is the bus here?
B.Yes,it has just arrived(вот тут не уверенна в форме слова,проверь лучше по интернету)
A.Where is Tom?
B. He has not come in yet.