Two Englishmen were traveling in France when a policeman stopped their car and gave it a search. He found a bag of white powder, which looked suspicious（可疑的）. “Drogue?” asked the policeman who was sensitive to heroin（海洛因）. “Yes, dog”, the two replied, having the least idea of their misunderstanding of the French word; and in no time they found themselves in prison. Analysis（分析）of the powder disclosed that it was a chemical which gave off a smell, used to discourage dogs from using the sides of the car as a toilet . The two were set free, after promising to take a few French lessons before their next trip in France.
63. The powder found in the car looked very much like______.

A．heroin

B．gun-powder

C．medicine

D．fertilizer

64. The French word “drogue” means______.
“dog”, which often used the sides of the car as a toilet
“drunk”, a state caused by the effect of drinking
“drug”, matter such as heroin and cocaine（可卡因）
“medicine”, used to cure people of their illnesses
65. The reason why the two Englishmen misunderstood the word “drogue” was that ______.
the words “drogue” and “dog” are more or less alike in pronunciation
“drogue” happened to be a word they had learned in their French lesson
they knew no French at all, but were shy of showing this
they didn’t know this word, but had a habit of taking things for granted
66.The two Englishmen were free_____.
directly after the analysis was carried out
after they had given a satisfactory explanation of the powder
after the police found out that they hadn’t broken traffic rules
on condition that they should do something to improve their French