从下列方框中选出适当的句子填入短文中，使短文意义完整。

    1    It’s No．7 middle School．My teacher’s name is Miss Li．My name is Wang Hong．I’m twelve．  2  ．In our class，we have 15 boys and 22 girls．The classroom is not new， 

3    ．It has two doors and six windows．I have a good friend．Mike．    4    He is eleven．We’re  in the same class．Mike has a sister．  5    She is five．She isn’t a student．