Разберем каждый пункт задания и составим диалоги по аналогии с примером.
2 Paul - do his homework - every afternoon
A: What is Paul doing?
B: He is doing his homework.
A: How often does he do his homework?
B: Every afternoon.
3 Mary - walk the dog - every morning
A: What is Mary doing?
B: She is walking the dog.
A: How often does she walk the dog?
B: Every morning.
4 Bob & Paul - cook lunch - every afternoon
A: What are Bob & Paul doing?
B: They are cooking lunch.
A: How often do they cook lunch?
B: Every afternoon.
Ответ: Составлены диалоги для пунктов 2, 3 и 4 по образцу пункта 1.