问题描述：
保护动物是非常重要的.____ _____ animals is very important._____ ____ very important ____ ____
保护动物是非常重要的.
____ _____ animals is very important.
_____ ____ very important ____ ____ animals.
保护动物是非常重要的.
____ _____ animals is very important.
_____ ____ very important ____ ____ animals.
问题解答：
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