Most scientists seem to agree that certain limit should be set on
sale of cars to ease air pollution.
A. a; the
B. /; the
C. the; /
D. the; the
网友回答
(答案→)A. a; the
B. /; the
C. the; /
D. the; the
解析：考察冠词。本题第一空使用a泛指一个限制。第二空使用the特指汽车的销售。句意：大部分科学家都同意为了减少空气污染，我们要设立一个限制来限制汽车的销售。故A正确。