Ответ:
Краткое пояснение: Чтобы сделать предложения отрицательными, нужно добавить "not" после вспомогательного глагола "have/has". Чтобы сделать предложения вопросительными, нужно вынести вспомогательный глагол "have/has" в начало предложения.
-
I haven't seen this film before.
-
My brother hasn't finished his project.
-
Have they eaten all the pizza?
-
Has your friend called you?
Ответ: I haven't seen this film before. My brother hasn't finished his project. Have they eaten all the pizza? Has your friend called you?