A sign is another kind of language. Here are some of them that you see on the roads.

Number one is a sign with the number thirty on it. When drivers see this sign , they must not go at more than thirty kilometers can hour. We see this sign when we are getting near a town. Number two is a sign that we're near a crossing. We must drive carefully. Number three is a sign that there is a bend in the road. Again, we must drive slowly and carefully. It is not safe to go round a bend very fast. Number four is a sign that there is another road coming in from the right. There is a junction at this place. Number five is a sign that there is a hill and number six is a sign that the road gets narrow. Drivers must go slowly and carefully. Number seven has the word “ SCHOOL” on it. This is a sign that there is a school at the side of the street or the road. Perhaps there are children going to or leaving school. So drivers must look carefully and go slowly. Number eight is a sign with the letter “ P ” on it. The letter “ P ” means “ Parking ”. At some places, there're the signs “ No parking ” or “ No waiting”. If a driver leaves his car near one of these signs, a policeman may come and write down the number of his car.
At the places where you see Sign 1,        .

A．you are already out of a town

B．you still have thirty kilometers to go

C．there must be many houses and buildings not far away

D．there must be a town thirty k8ilometers away

The underlined word bend probably means         here.

A．traffic	B．subway
C．turning	D．danger

You have to drive not only slowly but also carefully when you find        .

A．each of the eight signs

B．either of Signs 2 and 3

C．all of Signs 2, 4, 6 and 7

D．any of Signs 3, 5, 6 and 7

People put these signs on the road in order to        .

A．teach drivers lesson

B．make drivers even safer

C．stop cars going there

D．learn another kind of language

Which can be the best title for this message?

A．Another language.

B．On the road.

C．What to do.

D．Traffic signs.