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Exercise 4. Use appropriate forms of the verbs TO BE and TO HAVE in the sentences below.
1. Jessica __ a very diligent student.
2. How many dogs __ your parents?
3. We__ very happy to see you again.
4. Peter__ his English four times a week.
5.__ Stan and Suzie on holiday now?
6. Jason and I__ interested in history.
7. My cat__ three kittens.
8. Lucy and Sheila__ not very cute.
9. I__ sorry to interrupt you.
10. Why __ you so excited today?