1. I English exercises twice a week. (to write) 2. My friend his homework in the afternoon as a rule. (to do) 3. My sister her homework now. (to do) 4. Don't shout! The baby . (to sleep)

Решение:

1. I do English exercises twice a week. (to write)
2. My friend did his homework in the afternoon as a rule. (to do)
3. My sister is doing her homework now. (to do)
4. Don't shout! The baby is sleeping. (to sleep)

Ответ: do, did, is doing, is sleeping.