题目内容

Mrs. White became a teacher in 1985. She _____ for twenty years by next summer.

A. will teach B. would have taught C. has been teaching D. will have been teaching

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A. perfect B. popular C. public D. pleasant

A. write B. speak C. use D. read

What factors determine a person’s smoking habits ？

Age, income and education.
B. Age, sex and income.
C. Occupation, income and sex.
D. Occupation, income and education.

Passive smoking means____
A never-smokers take up the habit of smoking unwillingly
B never-smokers have to put up with the active smokers
C never-smokers take in smoke released by a lit cigarette
D never-smokers share an enclosed area with smokers