—Theairisveryfreshinourcity.Thereisless

問題詳情：

 —The air is very fresh in our city. There is less ___________ than before.

—Yes. The government has taken action to protect the environment.

A. wood            B. pollution        C. noise           D. water

【回答】

B

【解析】A. wood 樹木；B. pollution汙染；C. noise 噪音；D. water水，根據The government has taken action to protect the environment可知句意：我們城市的空氣很新鮮. 汙染比以前少了。故選B。

知識點：名詞

題型：選擇題