---Sir,could you please put out your cigarette This is a smoke--free(无烟的)school. ---（ ）

单项选择题If only I （ ） that was the last chance I could talk to her.I would have said to her,“Hi,my dearest mom! I love you”.

单项选择题I’ m surprised that that Andy is 25.I thought he was （ ）,for the seems to be in his thirties.

单项选择题Blog,a shared on line journal where people can post diary entries about their personal experience and hobbies, （ ）more and more popular with people of all ages.

单项选择题It is generally accepted that chinese were the earliest （ ）football while the Europeans established the modern rules for football.

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