This is Jim. He is thirteen. He is from the U.S.A. He is a student. He has a good friend. His name is Jack. Jack is fifteen. He is from Canada. Jack is tall, but Jim is short. They are in the same school, but they are in different grades. Jim is in Class Two. Jack is in Class Two, too. They go to school（上学）at seven in the morning and go home（）at six in the afternoon. 根据短文内容，选择正确答案。（5分） 小题1: Jim and Jack are ______. A. brothers  B. friends   C. teacher and student   D. from the U.S. A. 小题2: Jim and Jack are in _____. A．the same grade B．different grades C．the same color D．the same class 小题3: Jack is in _____. A．Class 4 B．Class 3 C．Class 2 D．Class 1 小题4: They go to school at ______ in the morning. A．6:00 B．7:00 C．7:30 D．8:00 小题5: Jim is ______. A．short B．tall C．strong D．Big