C. Find the mistakes and correct them

1. Incorrect: I have seen that movie last week. Correct: I saw that movie last week. (Past Simple needed because of "last week") 2. Correct: She finished her homework already. Correct: She has already finished her homework. (Present Perfect is more appropriate with "already") 3. Incorrect: They have gone to the park yesterday. Correct: They went to the park yesterday. (Past Simple needed because of "yesterday") 4. Correct: He never tried sushi before. 5. Correct: We visited London three times. 6. Incorrect: I have enjoyed that comedy last night. Correct: I enjoyed that comedy last night. (Past Simple needed because of "last night") 7. Incorrect: She has seen the creepiest movie last year. Correct: She saw the creepiest movie last year. (Past Simple needed because of "last year") 8. Incorrect: They have gone to the cinema last weekend. Correct: They went to the cinema last weekend. (Past Simple needed because of "last weekend") 9. Correct: He never tried to turn off the lights. 10. Incorrect: We have visited the museum yesterday. Correct: We visited the museum yesterday. (Past Simple needed because of "yesterday") **Объяснение:** В основном ошибки связаны с неправильным использованием Present Perfect вместо Past Simple, когда есть конкретное указание на время в прошлом (yesterday, last week, last night, last year, last weekend).