As one comes to some crossroads, he or she sees a sign which says that drivers have to sto

As one es to some crossroads, he or she sees a sign which says that drivers have to stop when they e to the main road ahead. At other crossroads, drivers have to go slow, but they do not actually have to stop unless, of course, there is something ing along the main road; and at still others, they do not have either to stop or to go slow, because they are themselves on the main road.
Mr. Williams, who was always a very careful driver, was driving home from work one evening when he came to a crossroad. It had a “SLOW” sign. He slowed down when he came to the main road, looked both ways to see that nothing was ing, and then drove across without stopping pletely.
At once he heard a police whistle, so he pulled into the side of the road and stopped. A policeman walked over to him with a notebook and a pen in his hand and said, “You didn’t stop at that crossing.”
“But the sign there doesn't say ‘STOP’.” answered Mr. Williams, “It just says ‘SLOW’, and I did go slow.”
The policeman looked around him, and a look of surprise came over his face. Then he put his notebook and pen away, scratched his head and said, “Well, I’m in the wrong street!”
【小题1】
Mr. Williams was driving      one evening.A．to a partyB．to his officeC．home after work D．to work from home【小题2】
When he was stopped by a policeman, he     .A．was driving at a high speedB．was driving onto the main roadC．was going to stop his car D．was pulled into the crossroad【小题3】
Though slowly, Mr. Williams continued driving at the crossing because     .A．he saw a “STOP” sign in the opposite streetB．he paid no attention to the traffic rulesC．he didn't have to stopD．he was eager to get home【小题4】
Looking round Mr. Williams, the policeman was surprised because     .A．he met a mad manB．he realized that he himself was mistakenC．Mr. Williams dared to speak to him like thatD．Mr. Williams would not apologize to himC