Question

1. Parrots imitate human speech.
2. Parrots mimic human speech.
3. Parrots copy human speech.
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Do they have the same meaning?

4. Can I ask you to take a picture of us?
5. Can I ask you to take a photo of us?
6. Can I ask you to take a photograph of us?

7. Can I ask you to take pictures of us?
8. Can I ask you to take photos of us?
6. Can I ask you to take photographs of us?
(Can we use all the expressions?)

Answer 1

1-3, yes, they do.

4-9, yes, all are fine.