补全短文。（共10小题；每小题1分，计10分）
用方框内所给单词的适当形式填空，使短文完整、通顺。

thousand,  many,  change,  help,  make, in,  close,  they,  also,  little

Saving electricity and water is important in our life. There are 小题1:　　　　 little things for us to do at home to help save the Earth. They’re small, but  小题2:　　　　 of people do the same thing and  小题3:　　　　 a great difference. By making some small 小题4:　 　 to the way you do things at home, you are helping our planet day by day.
You can spend 小题5:　　　　 and improve your health better at the same time, so
小题6:　　　　 to save the environment is a good exercise!
You can use windows to make the house good to live in. You can keep windows and doors 小题7:　　　　 to keep the house warm in winter and open in summer. The wind will often keep you as cool as 小题8:　　　　 the open air.
And you must do something to save water. The water that you use in the kitchen can
小题9:　　　　 be used to wash the rice or water the flowers, and it’s very good for 小题10:　　　　. Please always remember to turn off the lights when you leave.