The hottest continent, Africa has a lot of resources, ______ are still undeveloped.

A. many of them B. many of whom C. many of it D. many of which

 

D

【解析】

試題分析：本題中兩個(gè)完整的句子之間沒有連詞連接，說明不是并列句，而是一個(gè)主從復(fù)合句。實(shí)際上是一個(gè)定語從句，先行詞是a lot of resources，后面定語從句中的關(guān)系代詞which指代先行詞作為介詞of的賓語。句義：最熱的大洲，非洲有大量的資源，其中很多仍然沒有被開發(fā)。A項(xiàng)應(yīng)該在前面加上but，whom指代的先行詞是人，it指代的是單數(shù)名詞。故只有D項(xiàng)是正確的。

考點(diǎn)：考察定語從句

 

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