Bài 5. Chuyển các cầu sau sang số nhiều 1. It is a ruler 2. There is a desk in the classroom 3. This is a flower. 4. There is a bench in the room 5. That is my book 6. The ruler is on the table 7. What is this? 8. Is that your student? 9. Who is this? 10. Where is my color pencil?
