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. are8. What ___ Igor's friends doing at the moment?a. am b. is c. are9. Their children ___ 5 and 8 years old.a. am b. is c. are10. Lisa's parrot ___ eating now.a. am not b. isn't c. aren't