【題目】Now the air in our city is ______ than it used to be. Something must be done to stop it.
A.good
B.better
C.worse

【答案】C
【解析】句意:現(xiàn)在我們城市里的空氣比過去更糟糕了,必須做一些事情來阻止它。good好的,形容詞原級;better是good的比較級,更好的;worse是bad的比較級,更糟糕的。根據(jù)句意和句中的than可知,這里表示現(xiàn)在和過去的對比,應(yīng)使用比較級,并且根據(jù)Something must be done to stop it可知,空氣是變得更加糟糕了,故選C。

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