(Students: Use a black or blue pen. --------- Students must use a black or blue pen.

1. (children: Go sleeping before 9 o'clock) --------- Children .
2. (Have some of this fish. It's wonderful9 --------- You . It's wonderful.
3. (Visitors: Do not touch the paintings) --------- Visitors .
4. (My mother told me: Do your homework before you go out) --------- I before I went out.
5. (Passengers: Do not open the doors while the train is moving) --------- Passengers while the train is moving.
6. (Hotel guests: Vacate your room by 10 o'clock) --------- Hotel guets by 10 o'clock.
7. (It's bad for you to eat too many hamburgers) --------- You .
8. (Come for dinner with us one evening next week) --------- You with us one evening next week.
9. (Don't tell lies. It's bad) --------- You . It's bad.
10. (I told my son: Be back before midnight) --------- My son before midnight.
11. (Childeren: Drink a glass of milk every morning) --------- Children every morning.
12. (Follow the instructons when using the machine) --------- You when using the machine.
13.(Contestants: Do not contact the outside world) --------- Contestants the outside world.
14. (Do not drink beer or wine when driving) --------- You when driving.
15. (Film stars in last year's reality show: Eat ants and worms) --------- Film stars in last year's reality show.