题目内容
9. They are (企图) to climb the steepest part of the mountain.
9. attempting
1. Sorry,I am too busy now. (如果我有时间) ，I would certainly go for an outing with you.
1. China is a developing country with 5000 years' c .
3. We can't figure why quite a number of insects and birds are dying out.
3. Because of their small size,such planes e couldn't carry enough food or fuel for a long trip.
3. Much to our surprise,we found our hometown had changed (很多) in the past ten years.
10. The football star (脱离) his club and planned to join another.
2. The cars give off a great deal waste gas in the streets. Something will be done to reduce air pollution.
4. There's some doubt he'll keep his promise.
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