阅读下面短文，补全表格中所缺的信息。

Hi! I’m Jack from New York. I am 15 years old. I’m in No.7 Middle School to learn Chinese. I can speak and write Chinese! I think I can be a Chinese teacher one day(某一天).

I like to swim best. Li Ling is my friend. she is a Chinese girl. She is 14. Li Ling is in my school, too. She thinks she may be a painter. Because she likes painting very much. She can paint well. Basketball is her favorite sport. She thinks it’s very interesting.

--- Hi! I’m Amy.     ---_____.

Hi,I’m Mimi. I’m four years old. I enjoy listening to music very much. I can sing and dance. This is a photo of me at my birthday party. I look very cool because it is my birthday today.It is favorite day of this year.I get up early and I’m ready for my birthday party.I have a lot of animal friends .iIcall them to my home on the phone. Then I take a bus to go shopping. I buy some food ,friut and drinks in the super market.At 7:0p.m,the party begins.All my friend asks me to sing some songs for them .I’m shy in front of them but I feel happy.Look! I’m playing guitar.They are listening tomy songs They clap their hands from time to time.at last ,all my friends walk to me and sing.” Happy birthday” to me.How happy my birthday is !And my friends have a good time .
【小题1】How old is MiMi?

Hi, I’m Liu Ying. This is my school. It’s big and beautiful. There are twenty classes. There are nine hundred students in my school. There are four beautiful gardens in it. There is a building in my school. On the first floor, there are two offices and a hall. There are six classrooms on the first floor, too. On the second floor, there are fourteen classrooms. There are two toilets on the second floor. There is a big library and some reading rooms in my school, too.
【小题1】How many classes are there in the school?