The Oxford and Cambridge Boat Race takes place every year in_______.()
A. March or April
B. March or May
C. April or May
D. May or June
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(question 46-50)Until the_______ cigarettes were not an important threat to public health. ()
A. 19th Century
B. 21st Century
C. 20th Century
D. 18th Century
What reduced the price of cigarettes? ()
A. The great number of people engaged in cigarette producing.
B. The rapid development of cigarette-making machines.
C. The rapid development of cigarette-making factories.
D. The increasing output of tobacco.
What is the percentage of American adult women who smoke regularly? ()
A. Forty-three.
B. Thirty-one.
C. Seventy-five.
D. Forty-six.
What plays a part in determining a person’s smoking habit? ()
A. Income, years of schooling and job type.
B. Family background and work environment.
C. Education and mood.
D. Occupation and influence of family members.
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