The answer is: [A]:
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"<span>Animals cannot acquire any of the four characteristics of language because of physical and mental limitations."
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2. I had worn blue shoes.
3. The table had been cleaned by Joe.
4. The key had been lost by us.
5. A fight had been started by them.
7. The window had not been closed by me.
8. The paper had not been bought by them.
9. I had not been noticed by her.
10. Had the problem been solved by her?
A man or woman. A baby crawls on all fours, then walks on two legs when an adult, then when they are old they use two legs and a cane.
