7. Mixture of tenses. Put in the correct auxiliary verb in each sentence.

A) do B) did C) are D) have

1. I ___ not see Andrew yesterday.

2. How long ___ you lived there?

3. Why ___ you learning English?

4. ___ you seen anybody today?

5. What ___ you think of your new teacher? To my mind she is very nice.

6. ___ you angry about what happened?

7. ___ you read a newspaper yesterday?

8. My mother knows Mrs. Dave better than I ___ .

9. ___ you ever forgotten about your friend's birthday?

10. How ___ you get to the station when you are late?

11. ___ you disappointed with you exam results?

12. ___ you been abroad? ___ you enjoy it?

13. I ___ known Jane for three years, but I___ not know what she's thinking.

14. They ___ a lot of crying last night.

15. You ___ always making mistakes.