I have a big family. My father is a policeman. He must (stay / stays) in the office every day. Sometimes, he  (works / work) at night. My mother is a teacher. All the students must (listen / to listen) to her (careful /carefully) in class. She likes her (children / childs) very much. My grandparents (is / are) farmers. They have a big farm. There are (many / much) animals and fruit trees on the farm. I like (play / playing) games there. I(can / must) pick fruit there. I can (play / playing) with the animals too. I have great fun.