6.Are you afraid (　　　 )snakes? No,but I am not afraid (　　　 )(catch) it by hand.

4.I mistook her (　　　 )her twin sister,because they looked the same.

you find the solution (　　　 )the problem?

3.I took his bag (　　　 )mistake,so I must give it (　　　 ) (　　　 )him.

2.If you add five (　　　 )five, you will get ten.

1.The population of China adds (　　　 )(　　　 ) 1.4 billion.

14.When we are angry, we are usually the ones (　 　　)(affect).

13.Worrying (　　　 )our problems can affect how we do at school.

12.I got an A this term.My teacher (　　　 )(impress) greatly.

11. I started to write my own original sentences (　　　 )(use)the grammar I was learning.

10. I decided (　　 )(take) lots of grammer notes in every class.