問題詳情

※ 請改寫成S + V1 + N, part/some/many/both/none … of which/whom + V2/be …. 的句型。6. Scientists have observed changes in the north and south polar ice sheets; both of them are melting and causing the sea level to rise. 

參考答案

答案:C
難度:簡單0.895045
統計:A(60),B(84),C(2908),D(62),E(0)

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