题目内容：

When I first met my fifth-grade teacher, I was happy. She seemed pretty nice, so I was excited to 1. a whole year with her. Every day the class would do a warm-up and then discuss it. We would also read stories, sing songs and learn about different cultures around the world. I thought I was very lucky to have such a great, kind and caring 2..

When December came around, my teacher suddenly stopped 3. to school. The whole class missed 4.. Rumors（谣言）spread around the school about 5. she didn’t come to school.

＂She’s 6. holiday,＂ some girls explained to each other during lunchtime.

＂She’s got really tired of us and decided 7. to teach us anymore,＂ some boys said.

8. no one knew the truth.

For the rest of the school year, I never saw her again. In the middle of the sixth grade, I received a disturbing（令人不安的）message. She had died of cancer（癌症）. I 9. very upset. I wish I could visit her in the hospital. Whenever I think about her, I remember all of the happy times we had together. Because of her, I can understand what matters most to me. I never told her how much she meant to me. And now it’s too 10..