Bob is 11 years old. He goes to a boarding school(寄宿学校). He stays at school five days a week. He is in the baseball club and music club. He likes playing baseball very much and he is good at singing and playing instruments(乐器). He can play the violin(小提琴), the piano and the guitar well. His parents, Mr. and Mrs. Smith, are music teachers. They teach in another school. They like music very much and are successful in music. They often sing at singing shows on TV. Bob’s sister, Mary, is 5. She can sing a lot of songs. She can dance well, too. She says she wants to be a musician(音乐家) and a famous dancer.
【小题1】How many people are there in Bob’s family?