Помогите 1 и 4. Прошу. 11баллов

Question

Помогите 1 и 4. Прошу. 11баллов

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Answer 1

1:
1. Have you ever visited an art gallery?
2. William has never riden a horse.
3. Joe and Ellie have just came back from their holiday.
4. I have already spoken.
5. Have you written yout e-mail yet?
6. We haven't bought bread yet.