() 4. Many rivers these years.

   A. have became polluted

   B. have been polluted

   C. has been polluting

   D. has become polluting

4. B

4. B表示“許多河流已經(jīng)被污染”應(yīng)用現(xiàn)在完 成時的被動語態(tài)：have/hasbeen+動詞的過 去分詞。

題目來源：2016年全品學(xué)練考九年級英語全一冊下新課標(biāo)人教版 > 第1課時分層訓(xùn)練（Section A1la-2d)

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III[2015 • 廣州]閱讀理解

This is a tale of two friends—one is blind,the other has no arms. On their own,the two are “disabled”. But together,they are a powerful team that has changed part of their village in North China's Hebei Province into a rich,green forest. Meet 53-year-old Jia Haixia and Jia Wenqi!

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