1) Complete the sentences. Use positive or negative forms of the verb to be:
1. Lera and Varya ___ swimming in the pool.
a. am b. is c. are
2. Misha ___ sleeping now.
a. am b. is c. are
3. Dima's bicycle ___ new.
a. am b. is c. are
4. I __ hot. Please, open the window.
a. am b. is c. are
5. ___ your classmates playing basketball now?
a. am b. is c. are
6. We can walk to school. It ___ far.
a. am not b. isn't c. aren't
7. Why ___ you so angry?
a. am b. is c. are
8. What ___ Igor's friends doing at the moment?
a. am b. is c. are
9. Their children ___ 5 and 8 years old.
a. am b. is c. are
10. Lisa's parrot ___ eating now.
a. am not b. isn't c. aren't