chuyển câu chủ động sang câu bị động hoặc từ câu bị động sang câu chủ động

1. People drink a great deal of tea in England. 2. Tom was writing two poems. 3. She often takes her dog for a walk. 4. People speak English all over the world. 5. A group of students have met their friends at the railway station. 6. They didn't allow Tom to take these books home. 7. T ...