we must protect plants

We must protect plants because they are friends of____．（　　）

A. we

B. us

C. our

D. ours

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第1个回答 2019-06-02

答案：D 根据语境可知，we 我们，是人称代词主格形式；us我们，是宾格形式；our 我们的，是形容词性物主代词；ours我们的，是名词性物主代词．friends of ours，我们的朋友，这里是双重所有格的形式．故选D．

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