阅读下面短文，从短文后各题所给的四个选项中选出能填入空白处的最佳答案。
Grandmother's Problem
There was once a grandmother living in her grandson's house. The man loved 1 grandmother very much. However, she had some strange habits, so the man thought she needed medical help. Perhaps, he thought, it was time for her to 2 the rest of her life in a special hospital.
"I'd like you to examine my grandmother," he told a doctor, "then let me know 3 you think she needs special care."
"All right," the doctor said, "send her to me next Tuesday."Tuesday came and the old woman went to see the doctor. She 4 in front of him and he asked her lots of questions. She answered them all, and the doctor was 5 .
"There's 6 with this woman," he thought."I don't understand why her grandson has sent her to me. Perhaps he's the one 7 needs special care."
He decided to ask her one last question. "Why do you think," he asked her, "your grandson wants you 8 special care?"
"I like hamburgers," she said. The doctor laughed."I like hamburgers, too!"
"You 9 ?"the old woman said, "I'm so glad. Then you must come to my house and have a hamburger 10 me. I've got boxes and boxes of them in my bedroom."
