单项选择题—Im afraid Ive brought you too much trouble.—
单项选择题Its surprising that this innocentlooking person should havesuch a crime.
单项选择题I wonder what has happened to Annie, Shehave been here by now.
单项选择题—I cant work out this problem.—. Lets ask the teacher.
单项选择题In China as well as many other countries around the world,greathave been made to reduce the amount of carbon emission.
单项选择题With an examination,the students felt relaxed and enjoyed themselves the whole night.
单项选择题—he managed to get the information—Oh, a friend of his helped him.
单项选择题—Which of the two ties would you like to wear—.You know Im not particular about ties.
单项选择题—John,why did you make no reply to me when I called you in the street—Sorry,Jim.Ito my friend on the phone.
单项选择题Generally speaking,the air pollution in cities is more serious thanin the country.