----- Nội dung dịch tự động từ ảnh ----- Ex 1: Find and correct the mistakes: 1. I was play football when she called me. 2. Wasyoustudy Math at 5 p.m. yesterday? 3. What was she do while her mother was making lunch? 4. Where did you went last Sunday? 5. They weren't sleep during the meeting last Monday.
