The cost of living in Chengdu is among the lowest in China, ________ the quality of life is probably one of the highest.
A. since B. when C. as D. while
— Do you have any plans for the winter holiday?
— Since you are crazy about music, why not go to some ________ concerts?
A. lively B. live C. alive D. living
________ Mary ________ Jack is listening to the report carefully, because they are both interested in it very much.
A. Neither; nor B. Either; or C. Both; and D. Not only; but also
I don’t make ________ clear when and where the parents’ meeting will be held.
A. this B. that C. those D. it
假如你是Daniel，请根据以下提示用英语写一份电子邮件给报社，提出环保倡议。请根据中文提示，写出意思连贯、符合逻辑、不少于80词的短文。第五个要点根据主题用1-2句话自由发挥。开头和结尾已给出，不计入字数。
1. 今年春天中国政府下定决心治理污染，使天变蓝，水变绿；
2. 我觉得最严重的问题是空气污染，空气污染导致了许多健康问题；
3. 我们要少开车，可以骑自行车外出，自行车不产生空气污染；
4. 要多种树，树能够使空气清洁；
5. 我觉得……
Dear editor,
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I am looking forward to hearing from you!
Best wishes!
Daniel
完成句子 按所给的汉语，用英语完成下列句子。(本大题共9分，每小题1.5分)
1.我们仔细地将海南的空气和北京的空气做了比较。
We carefully ________________________________________________ in Beijing.
2.在这家服装店里，有各种款式供顾客选择。
In the clothes shop, there are ________________________________________________.
3.我们大家都要努力学习使我们的梦想成为现实。
All of us should work hard in order ________________________________________.
4.老板对他的行为一点都不满意。
The boss was ________________________________________________ at all.
5.老师告诉我们地面每两个星期需要拖一次。
The teacher tells us the floor ________________________________________________.
6.他不知道如何处理这么严重的问题。
He didn’t know what he ________________________________________________
