Ответ:

1)а)We watch TV every day.

b)We are watching a good documentary now.

2)a) I swim in the sea every year.

b)Oh no!That shark is swimming towards us.

3)a)He is eating in a restaurant at the moment.

b)He usually eats at home.

4)a)Humans sometimes hunt animals for sport.

b)Look!Those men hunt baby seals.