B
情境导语：Join Alice and Grandpa Brown on their walk. Can you answer her fun question?
After dinner, Mr Brown is going out for a walk. Alice is playing with her dog in the yard(庭院)and sees him. She wants to walk with him and he agrees(同意). They get to the hill soon(不久).
“There are a lot of flowers on the hill,” says Alice. “Let's go and pick(摘)some flowers.”
“OK,” her grandpa says and they begin to climb the hill. The girl is tired and wants to have a break(休息). So does her grandpa. They find a small stone(石头)and the old man tells Alice to sit down.
“You sit down, Grandpa,” says the girl. “I can sit on your knees(膝盖).”
The old man thinks she's right. The girl thinks for a while and says, “There's a place. I can sit on it, but you can't. Where is it?”
Mr Brown looks around, but he can't answer. Alice laughs(大笑). My readers，can you tell me the answer?
根据语篇内容，选择最佳选项。
()51. When does Mr Brown go out for a walk?
A. In the morning.|B. After dinner.|C. At midnight.|
()52. What does Alice want to do?
A. Play with her dog in the yard.|B. Stay at home.|C. Go for a walk with her grandpa.|
()53. Where is the hill?
A. It is far from Alice's house.|B. It is near Alice's house.|C. It is behind Alice's house.|
()54. Why is Alice tired?
A. Because she picks the flowers.|B. Because she plays with the dog.|C. Because she climbs the hill.|
()55. What is “the answer” in the last paragraph(最后一段)?
A. Alice's grandpa's knees.|B. The hill.|C. The flower.|

51. B 52. C 53. B 54. C 55. A