In many countries, men (have to) do military service.I (must) go to school. It’s really necessary for my education.My brother and I will (have to) visit our granny at the weekend.We (don’t have to) go to school on Sundays.Nurses (have to) wear uniform at work.Lions can roarDogs can bark very loud.Cats can miaow.Horses can neigh.Hens can cluck.Sheep can bleat.тигр tiger конь horse жираф giraffe летучая мышь bat цыпленок chicken корова cow бабочка butterflyкот cat пингвин penguin кенгуру kangaroo пчела bee медведь bear