a) Correct the form of "To be".
These are Michael and Joseph. They are twin brothers. They are16 years old. They are both short and slim. They are in the same class. They are always together. They are from London. Their favourite football teamis Liverpool and their favourite singer iş Madonna. Michael's hairs blonde and wavy but Joseph's hair is dark and straight. Michael iş good at Mathematics and Joseph iş good at Physics. They are both interested in seeing new places and camping. Their house iş in the country. It is a small cottage. Their father iş a bus driver and their mother iş a shop assistant. They are very happy together.