Hãy chuyển các câu sau sang dạng câu bị động
1. We use the second hand computer carefully
2. They don't stay anything when they meet me
3. They design three houses each year
4. They usually help the tourists how to enter the cave
5. The grow rose in the garden
6. They often test weapon in the area
7. She never forgets to turn off the light before going out
8. They divide the book into three chapters

