----- Nội dung dịch tự động từ ảnh ----- EXERCISE 1: Add tag questions to the following 1. I'd better go now, 2. Your bothers always learn hard, 3. The number of rare animals is decreasing rapidly, 4. Visitors do not help to preserve and protect national parks, 5. Noone has been there, 6. The Smiths have two cars, 7. It could be done, 8. She's got lovely blue eyes, 9. She'd save money if she bought fresh food,
