With the development (发展) of society (社会), 1． life becomes more and more important. Some people think it is very 2． to do. In fact (实际上), we can do a lot of things.
First, as a 3．, some of us can ride a 4． to school, or walk to school every day. It can 5． energy and it is good 6． our healthy (健康). Second, when we leave the classroom, remember to 7． the lights to save electricity. And third, we should 8． our homework on both sides of the paper.
It’s a good 9． to save paper, and to save trees. If everyone can 10． a low-carbon life, the world will become a better place.
| A．difficult | B．low-carbon | C．for | D．save | E．bike |
| F．student | G．live | H．turn off | I．way | J．print |
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