----- Nội dung dịch tự động từ ảnh ----- 1. She was so smart that she was able to solve the maths problem. => It was 2. It was confident of him to say that everything would go as planned. => He was 3. It was surprising for visitors to find that the country has changed dramatically within a very short time. => Visitors were 4. Everyone was glad when they learned that the government had decided to invest more in education. => Everyone was 5. They know very well that it will be much safer to have elevated walkways for pedestrians. => They are