3 задание помогите срочно!!!!!!!!!!!

2)
-Is Roman writing a letter?
-No, he isn't.
3)
-What are the chefs doing?
-They are making pizzas.
4)
-Are you answering the phone?
-Yes, I am.
5)
-What is the mechanic doing?
-He is fixing my car.
6)
-Are you working outside today?
-No, I am not.