We _______ on this project for four hours. Let’s have a rest.
A. are working B. have been working
C. worked D. had worked
This dictionary is_______ to my translation, but that one is________.
A. a great help ; of no use B. very helpful; of no any use
C. great help; helpless D. important; of few importance
The family settled in New York in 1970 and has lived there_______.
A. ever since B. long since C. since before D. since ever
Sichuan is located ________ the west of China while Japan lies______ the east of China.
A. to ; to B. in; in C. in; to D. to; in
We agreed ______ here but so far she hasn’t turned up yet.
A. having met B. meeting C. to meet D. to have met
2011年5月1日起全国实施室内公共场所禁烟，为此，你校学生对学校周边的部分室内公共场所禁烟的情况进行了调查，结果发现，约40% 的室内公共场所仍有吸烟现象。假如你是李华，请你用英文给《21世纪报》的编辑写封信，内容包括以下要点：
1．简要描述调查结果；
2．说明吸烟对健康的影响；
3．提出具体的禁烟措施或建议。
注意：
1．词数100-120左右；
2．信的开头和结尾已给出，不计入总词数。
参考词汇：现象phenomenon
Dear editor,
A smoking ban（禁烟令） in all indoor public places in China, such as hotels and restaurants, has taken effect（生效） since May 1st, 2011, but the survey we have recently conducted shows that___________________________________________________________________________
____________________________________________________________________________
Best wishes!
Yours Sincerely
Li Hua
