听短文，选答案。 1. What do Jack, Hob and Kate do? A. They are engineers. B.They are doctors. C.They are students. 2. What is Hob interested in? A. Building roads, bridges and houses. B. Math and science. C. Music. 3. What is Kate going to be'? A. An artist. B. A doctor. C. A singer. 4. Where is the writer going to teach? A. In town. B. In the city. C. In the countryside. 5. What can they do for our country? A. Something important. B. Something good. C. Something different.