阅读下面的短文，按要求选择正确答案。 It's nine o'clock in the morning. The family is at home. Jim's father is sitting in a chair. He's watching TV. Jim's mother is standing near the window. She's giving some food to a bird, Polly. Polly says, ' Thanks! Thanks! ' Where's Jim? Oh! He's behind the door. Kate, Jim's sister, is looking for him. They are playing games. They have no homework on Sunday evening. 1. There are _____________ people in the family. A. three B. four C. five D. six 2. Who is watching TV in a chair? A. Jim. B. Jim's mother. C. Jim's father. D. Jim's sister. 3. Jim and Kate are _____________. A. good friends B. two girls C. two boys D. brother and sister 4. The children _____________ doing their homework. A. aren't B. isn't C. don't D. not 5. What's Kate doing? A. She's doing her homework. B. She's standing near the window. C. She's looking for a pen. D. She's playing games.