1. My shirts _________________ by my mother when I enter the room.                     (iron)
2. The police appeared while a young man _________________ by two hooligans.            (beat)
3. The letter _________________ by the secretary at 9.00 yesterday.                           (write)
4. The trees _________________ by the kids at the moment.                                         (water)
5. Look! The big truck _________________ by the customs officer.                             (check)
6. _________________ by the police car now.                                                                  (follow)
7. Paper _________________ by the Chinese many year ago.                                       (invent)
8. The conference  _________________ due to the president’s absence yesterday.   (not, hold)
9. I _________________ a piece of  advice by my mother every day.                          (give)
10. The Internet _________________ all over the world.                                                (use)
11. Laura _________________ to go out after 10 p.m.                                                     (not, allow)
12. They _________________ by their teacher every day because of their laziness. (punish)
13. _________________ by the doctor yearly?                                                                  (examine)
14. All the rooms in my house _________________ before Tet holiday last month. (decorate)
15. The exam papers _________________ by the teacher this morning.                      (mark)