Some people fear that ______ air pollution may bring about changes in ______ weather around the world.
A．/, the B．the, / C．a(chǎn)n, the D．the, a
A
考查冠詞。第一空是泛指，說(shuō)空氣污染；第二個(gè)特指這種空氣污染的天氣所以要the，故選A。
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