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
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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.