1. I am glad to see you.
2. You are our best friend.
3. He is an excellent driver.
4. Ann is a perfect housewife.
5. We are ready for hard work.
6. It is a green dress.
7. They are our best employees.
8. My friend and I are divers.
9. I am busy.
10. Mr. Osipov is the Director of Department.
11. It is cold autumn.
12. These things are dangerous.
13. Who is absent from the last lecture?
14. These goods are not very expensive.
15. Where is the nearest supermarket, please?
ОБЪЯСНЕНИЕ:
С I употребляется Am
С We, You, They употребляется Are
C He, She, It употребляется Is
В отрицательных предложениях добавляется частица not, в вопросительных же глагол to be(am, is, are) ставится на первое место , затем уже идёт существительное или местоимение.