1. You weren't at Sam's party last weekend -> were là quá khứ của be You / they / we + were I / he / she / it + was -> đây là quá khứ đơn ( last week ) 2.They weren't at the leisure centre yesterday evening -> were là quá khứ của be You / they / we + were I / he / she / it + was -> đây là quá khứ đơn ( yesterday ) 3. My mum was very angry because my bedroom was untidy 4. She could ride a bike when she was six ? 5. We weren't at New York last month -> were là quá khứ của be You / they / we + were I / he / she / it + was -> đây là quá khứ đơn ( last month ) 6. The weather wasn't very good yesterday -> were là quá khứ của be You / they / we + were I / he / she / it + was -> đây là quá khứ đơn ( yesterday ) 7. Ada was good at math when he/she was a child dịch : ada đã rất giỏi toán khi anh/ cô ấy còn nhỏ -> were là quá khứ của be You / they / we + were I / he / she / it + was -> đây là quá khứ đơn 8. Sam scared when she saw the dangerous dog 9. When Picasso was 16 years old , he had left the school -> quá khứ hoàn thành S + had + PII 10. câu này hình như bạn chụp không đủ ạ hic