Правильно вставить present simpl или ! 1)what (you/do)? 2)yes,a lot.how much it cost? 3)how often (you/clean) your room? 4)) hard these days. вместе с пощниками.

1)What are you doing?
2)Yes,a lot.How much does it cost?
3)How often do you clean your room?
4)Lisa is studying hard these days.