4 Complete the texts with may / might) could, must or can't. It's an animal and it can fly. be a bird or it? be an insect. It have wings. It be an elephant! It's got two wheels and it goes 60 kilometres per hour. Its be a car. It be a bicycle. It? be a motorbike It's a warm place where you can swim. It be a river or the seaside. It a be a swimming pool. It be a bath because that would be too small to swim in! 10