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| A．bridge | B．people | C．village | D．club |
Although I love ______, I try to eat it ______.
2. 饮食平衡对你的健康有好处。
______ diet is ______ your health.
3. 他常常看完电视才睡觉。
He ______ often ______ to bed ______ the TV program is over.
4. 我感觉不舒服，我得去看医生。
I don't feel well. I ______ a doctor.
5. 如果你想保持健康，你必须进行足够的体育锻炼。
If you want to ______, you have to ______.
选词填空
There is something people didn' t understand in the sky．The USAF(美国空军) 1 used the words "Unidentified Flying Object" to describe them．Today 2 uses the term(术语,说法)UFO．When people see a UFO, it is 3 a weather balloon(气球)or an airplane．But the Center 4 UFO Studies continues to receive 5 of reports every year．
In 1947 a businessman(商人)and pilot, Kenneth Arnold, 6 near Mount(山)Rainier, Washington when he saw nine shiny, round objects(物体)flying through the air(天空)．He told a newspaper reporter that they 7 like "pie plates skipping(跳)over(在……上方)water"．The reporter used the words "flying saucer(飞碟)" in his story and today that 8 a popular name for UFOs．
Now in different countries, many people 9 the UFOs．Some people make mistakes when they say they have seen UFOs．But people still can't 10 UFOs clearly．It may take many years to find a clear answer．