It is selfless ________ the doctor to devote all the time he had ________ for the patients.
A. for; to care B. of; to care C. for; to caring D. of; to caring
--- is the school from your home, do you know?
--- About 30 minutes’ walk.
A. How far B. How long C. How much D. How soon
---How long have you ________ your penfriend?
---For five days. I received it last Sunday.
A. heard from B. received the letter from C. heard of D. had the letter from
On women’s Day, of the girls was excited because they each a present.
A. every one; was given B. everyone; was given
C. every one; were given D. everyone; were given
________ useful information they’ve found on ________ Internet!
A. What a; the B. What; the C. What an; the D. How; an
这段时间，雾霾成为备受社会关注的焦点; 改善污染现状、反思生活方式成为人们关心的问题。请根据以下要点写一篇保护环境的短文，并谈谈你的观点。
1、目前，地球变得越来越拥挤和污染。如何保护环境已成为当今世界最大的难题之一；
2、空气质量变得越来越差，损害人们的健康；
3、废水污染河流，杀死大量的鱼；
4、政府投入全部努力去阻止污染和改善环境；
5、人们应该不健康的生活方式。你的建议……
注意：1、文章必须包含所给内容要点，要求语句通顺、意思连贯；
2、第5个要点要用1~2句话发表自己的观点；
3、词数80左右（开头已给出的内容不计入字数）。
