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20．The price of pork has not been kept under control as expected，and _____ is more surprising is that the price has risen by 15% just in the past few months．（　�。�
A．thatB．whichC．whatD．it

分析 正如料想的那樣，豬肉的價格沒有被控制住，更讓人驚訝的是價格就在過去的幾個月，價格上漲了百分之十五．

解答 答案：C
通過該句式的分析可知，and連接兩個并列句，_____ is more surprising 引導用一個主語從句，該從句中缺少主語，故用what，意思是更讓人驚訝的是，故答案為C．

點評 考生在答題之前，先對句子結構分析，從而確定從句的類型以及所缺成分．再接合相關語法選擇正確答案．

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