All the tickets ________ by the time I got to the cinema.
A. sell out B. sold out
C. have been sold out D. had been sold out
The dentist didn't ________until it was nine o'clock in the evening.
A. show up B. show off C. show around D. show to
—Lily told me I failed the math exam.
—Oh，don't believe her. It must be a(n) ________.We all know you do well in math.
A. accident B. hoax C. panic D. result
Mr. Black ________his keys in the office，so he had to wait until his wife ________ home.
A. has left；comes B. left；had come
C. had left；came D. had left；would come
Something special happened ________ Mary ________ the first day of school.
A. at；on B. to；on C. with；in D. about；in
书面表达 （满分20分，其中表达占15分，书写占5分）
现在环境污染越来越严重，请你写一封100词左右的信呼吁人们保护环境，遵守规则。要点如下，信的开头和结尾已给出，不计入总词数。要点如下：
1.保持周围环境清洁，不要……，不要……；
2.在公共场所大声谈笑是粗鲁无礼的，在图书馆……；
3.如果有人挡住你的路，可以说“劳驾”然后足够有礼貌等他移动；
4.离开教室时关闭所有的灯，购物时……；
5.还应解释保护环境的重要性；
6.发出倡议。（1-2句）
Dear all,
The environment around us is becoming worse and worse. We must do something to stop it．
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Yours sincerely，
Tom
