题目内容
（请给出正确答案）
After 15 years in the United States, he has finally decided to______American citizenship.
A．concentrate on
B．apply for
C．look out for
D．appeal on
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A、abolished
B、expired
C、amended
D、constrained
A、reminded to
B、reminded of
C、reminded that
D、reminded about
A、Xiang Liang
B、Xiang Yu
C、CaoChao
D、SunQuan
Asia’s rising middle class may be driving the increase in car ownership, leading to traffic congestion and air pollution in the region’s cities, but this status symbol may be slowly giving way to an old love ----cycling. More Asians are jumping on a bicycle for fresh air and to lead a more environmentally-friendly and active lifestyle in recent years as staying sedentary inside a car for hours could take a toll on one’s health, and be hard on the wallet because of the high cost of fuel and maintenance.
A. together with
B. two sons
C. are
D. on
A. one needs being patient person
B. patience is to need
C. one needs to be patient
D. patience is what needed
A．teaching is a product of the society's division of labor
B．enough salaries are necessary in making quality people become teachers
C．greater progress has to be made in teaching
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