单选题：While we don't agree,we continue to be friends.

题目内容：

While we don't agree,we continue to be friends. A．Whoever
B．Where．
C．Although
D．criticized

参考答案：

答案解析：

This kind of animals are on the verge of extinction, becaus

This kind of animals are on the verge of extinction, because so many are being

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