Some people fear that ________ air pollution may bring about changes in _______ weather around the world.
A. /; the B. the; / C. an; the D. the; a
Some people fear that ________ air pollution may bring about changes in _______ weather around the world.
A. /; the B. the; / C. an; the D. the; a
A
air pollution 在此表示泛指，weather 特指全球的气候，其前要加定冠词。