15.When I was a little child, my e______ sister looked after me like a mother.

14. You have more pens than I, but m ______are better than yours.

13. ---Are they the __________(twin) parents? ---Yes, they are.

12. The more exercise you take, the h__________you will be

11．Most business letters are w ________in English.

10.___I’m t________ sorry I’m late.

　　　 ____That’s nothing. The bus is not here yet.

9．She didn’t feel like f________so many dogs. 　

8．He believed his daughter had made a good d________.

7．With the d________ of computer science, more and more work will be done by computer.

6．Things are much l________ when they are on the moon.