Tìm lỗi sai và sửa ----- Nội dung dịch tự động từ ảnh ----- Exercise 3: CORRECT THE MISTAKES 1. Before they came to visit my grandparents, I have already cleaned the house. 2. After Jimmy had gone home, I was doing the shopping. 3. She had come to the cinema before I do. 4. When they arrived, John goes away. 5. I had prepared for the exam and am ready to do well.
