--ZhengzhouusedtobecalledGreenCity.  --Yes.Treeson     ...

問題詳情：

--Zhengzhou used to be called Green City.

   --Yes. Trees on      sides of the road grew very well.

   A. every            B. each             C. both        D. neither

【回答】

B

知識點：不定代詞

題型：選擇題