Решение:
- Look! The children are playing in the yard now. (Действие происходит прямо сейчас, поэтому Present Continuous).
- My father usually drives to work. (Обычно, регулярно – Present Simple, 3-е лицо ед.ч. – drives).
- I am doing my homework at the moment. (Прямо сейчас – Present Continuous).
- We sometimes eat pizza on Fridays. (Регулярное действие, Present Simple, 1-е лицо мн.ч. – eat).
- Listen! Somebody is singing in the next room. (Действие происходит прямо сейчас, Present Continuous).
Ответ: are playing; drives; am doing; eat; is singing.