Read and answer the questions.阅读短文，回答下问题。
This is a picture of Tom’s family.There are four people in his family.They are his grandfather,father,mother and Tom.His grandfather is an old worker.His father is a doctor.His mother is a teacher.Tom is a pupil.They are a very happy family.
(1）What’s this?
                              
（2） How many people are there in Tom’s family?
                               
（3） What does his grandfather do?
                                
（4） Is his father a worker?
                                
（5） Is his mother a teacher?