I. Вставьте в пробелы формы глагола to be. 1. …Dr Sanford in? 2. Mrs. Sandford … at home. She … in the park with Benny. 3. She … in the garden. . 4. Old Mrs. Sandford … ill. She … in bed. 5. Her sisters … in the college. 6. The exercises … easy. 7. Betty and Paul … nineteen. 8. You … free on Sunday. 9. These lessons … difficult. 10. The sentence … long.

1. IS Dr Sanford in?

2. Mrs Sandford IS at home. She IS in the park with Benny.

3. She IS in the garden. 

4. Old Mrs Sandford IS ill. She IS in bed.

5. Her sisters ARE in the college.

6. The exercises ARE easy.

7. Betty and Paul ARE nineteen. 

8. You ARE free on Sunday.

9. These lessons ARE difficult.

10. The sentence IS long.