Ex. 2, p. 126

a)  Don’t ride if you have got back or neck problems.

Riding is strictly forbidden for expecting mothers.

Children under 10 years old must ride only with an adult.

Riding is allowed only for people who are taller than this sign.

b)  Father and elder daughter are allowed to ride because they don’t back or neck problems, they ate over 10 years old and they are not expecting mothers.