1. My work was finished at about five o'clock.
2. This book is used in our class.
3. He was given a nice present when he retired.
4. The boxes and took were opened out a cigarette.
5. Is English spoken all over the world.
6. This tree was planted last month.
7. This house was built in 1995.
8. The question must be answered all on the paper.
9. English is being sung an song.

   Mk cũng ko rõ là đúng hay sai nữa.
   Chúc bạn học tốt nhó !