I. Вставьте в пробелы формы глагола to be. 1. …Dr Sanford in? 2. Mrs. Sandford … at home. She … in the park with Benny.

В простом настоящем времени глагол to be имеет формы am, is, are.

• форма am употребляется только с местоимением I (я);
• форма is характерна для существительных в единственном числе и he (он), she (она), it (оно);
• форма are используется с существительными во множественном числе и we (мы), you (вы), they (они).

1. Is Dr. Sandford 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.