Поставьте глагол в форму Present Perfect ,past perfect или Future Perfect

  to arrive

Our taxi had arrived by 9 o'clock yesterday morningLet's go. The guests have already arrived.They will have arrived by the time the meetings starts.

  to be

I am tired of waiting. Where have you been?By the time I'm 30 I will have become (been?) a famous scientist.He didn't remember where he had been before the accident.

  to paint

We will have painted the house by next Tuesday.She has painted more than ten pictures already.I wondered if they had painted the room.