Где надо вставить have или has watched the new film about happy potter? -not yet. 2)three of the finished the test. 3)look at the players! i think they played hockey. 4) just arranget the date and time. 5) to the boy? -i dont know.

1)have 2)has3)has4)has5)have

1) Haxe you watched the new film about Happy Potter? - Not yet.
2) Three of the students has already finished the test.
3 )Look at the players! I think they has never played hockey.
4) They has just arranget the date and time.
5) What have happened to the boy? - I dont know.

Думаю так ! )