Відповідь:

1. He has already done...

2.Have you ever ridden...

3. How long has she been talking...

4. They have been packing...

5. She hasn't come yet...

6. Our friends have been traveling for 2 months...

7. What books have you already read...

8.How many invitations has he sent...

9.I have never eaten...

10. I have been learning...

11. I have been watering the plants...

12. Have you seen my slippers? I have been looking for them...

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