Поставьте глагол в форму Present Perfect, Past Perfect или Future Perfect.
to arrive
1. Our taxi … by 9 o’clock yesterday morning.
2. Let’s go. The guests already … .
3. They … by the time the meeting starts.

to be
4. I am tired of waiting. Where you … ?
5. By the time I’m 30 I … a famous scientist.
6. He didn’t remember where he … before the accident.

to paint
7. We … the house by next Tuesday.
8. She … more than 10 pictures already.
9. I wondered if they … the room.