Кто мне поможет, пожалуйста????

1) Have computers revolutionized the design process?

2) Have you bought anything for me?

3) Have you installed a smoke alarm in your office?

4) How long has the hotel been under construction?

5) Have we spent all money?

6) Have you paid the electricity bill yet?

7) They have doubled sales since January, haven't they?

8) Have you paid me back the £10 I lent you?

9) How long have you been out of job?

10) What product launches have you conducted recently?