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 an 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£®

21£®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 a town thirty kilometers away

D£®there must be many houses and buildings not far away

22£®There stands Sign 2 near a place where________£®

A£®two roads cross    B£®people can cross the road

C£®the roads get narrow    D£®there are no traffic lights

23£®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 3, 5, 6 and 7    D£®any of Signs 3, 5, 6 and 7