A. No swimming. B. Keep quiet.
C. Don't walk on the grass. D. No smoking.
a. Don't walk on the grass.
b. No smoking!
c. Don't eat!
d. Keep quiet!
e. No swimming!
A. No parking.
B. Don't enter.
C. Look out for children.
D. Don't turn le{t.
E. Don't turn right.