题目内容
6. You must wear a (头盔) if you want to get into the building.
6. helmet
7.随着技术的发展8. 在某些方面
19. 八分之三的……20. 在网上学校学习
1. I don't think too much food (干粮) is good for our health.
2. A plastic bag was (漂浮) on the water.
1. There is a balloon (飘浮) in the sky.
7. Sit on the sofa if you feel (comfortable) on the hard chair.
4. More and more people find it’s important to save energy in our daily life.(改为简单句)
More and more people find to save energy in our daily life.
() 3. — Life on Mars will be better than life on the Earth many ways.
A. on;to B. in;of C. at;of D. for;to
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