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.