Present perfect. Change the following sentences to questions.

1. Trent has finished cleaning.

2. It has stopped working.

3. Faruk has lived in this town all his life.

4. Quincy and Janet have worked together.

5. They have started playing.

6. She has tried to contact you.

7. They have been here before.

8. They have left.

9. I have seen this show.

10. They have solved the problem.