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A) Do not walk on the grass.
B) Put garbage in the trash can.
C) Not push.
D) Employees must wash hands before returning to work.
E) No cell phones.
F) Passengers.
G) Norunning.
H) Students must not chew gum in class.
I) Do not leave garbage.
J) Employees must report any breakages to the manager.
K) Put books back on the shelf.
L) All visitors mustreport to reception.
M) Employees cannot use telephone hats must be worn.
N) All dogs must be on a leash.
O) Only authorized personnel.
P) Keep your classroom clean.
Q) Noshouting.

At an airport | C, E, Q, B, J, L |
In a school | K, N, M |
In a park | A, B, I |
In a factory | B |
In a hotel | Q, B, L, J, L |

Work out! Prohibition
1 Read these statements fromthe board and answer the cuestions below.
Do not take off your wristband.
Do not wear jewelry in the pool.
a What do the sentences express? a) permission.
b How do we express prohibition? a)Using do not.
2 Look at these signs and circle T (true) or F (false).
a The signs mean you cannot dive. T
b No diving is the same as Do not dive. T
c We use verb + -ing after Do not. F
d We useverb + -ing after No. T
3 Write the phrases in a different way.
No swimming. Do not swim.
a Do not trespass. No trespassing.
b No littering. Do not litte.
c Do not fish. Nofishing.
d No eating. Do not eat.
e Do not run. No running.
4 Look at the public signs below. Write W for warning, P for prohibition, l for information, and O for obligation. Compare youranswers with a partner.
a P b O c N d l





e Wf P g L h O









1 write what the sings mean using phrases foem the box.
No luggage Wash your hands...