Помогите пж номер 3 и 5

3. I am wearing in a black short, light grey trousers and trainers 5. -What is Paul doing? - He is doing his homework - How often do he do his homework? - Every afternoon - What is Mary doing? - She is walking the dog - How often do she walk the dog? - Every morning - What Bob and Paul doing? - They are cooking lunch - How often do they cook lunch? - Every afternoon