20．I like___in the autumn in my hometown when the weather is clear and bright．（　�。�
A．thisB．thatC．itD．one

分析 我喜歡家鄉(xiāng)的秋天，天氣晴朗、明亮．

解答 答案C．
這里like后跟賓語從句時需加it再跟從句，此處的it為一虛詞，沒有實際意義，但是不能省略，指代的是后面的when it is clear and bright，其他的代詞沒有這個用法．故答案為C．

點評 關(guān)于代詞it的用法要分清它在句中的具體成分，再結(jié)合句意作出合理的判斷．

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