Nowtheairinourcityis_____thanitusedtobe.Something      ...

問題詳情：

Now the air in our city is _____ than it used to be. Something 

         must be done to stop it.

        A very good      B much better    C rather good    D even worse

【回答】

D

知識點：形容詞比較級

題型：選擇題