Course: Tiếng Anh Tăng Cường lớp 7 - Tam Đảo, Section: Week 11. Unit 7. Lesson C: Culture. Changing the World – Lesson D: Grammar. Past Simple: Negative and Interrogative

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Week 11. Unit 7. Lesson C: Culture. Changing the World – Lesson D: Grammar. Past Simple: Negative and Interrogative