Taiwan police cannot decide whether to treat it as an extremely clever act of stealing or an even cleverer cheat（诈骗）.Either way, it could be a perfect crime（犯罪）, because the criminals are birds----homing pigeons.
The crime begins with a telephone message to the owner of a stolen car: if you want the car back, pay some money. Then, the car owner is directed to a park, told where to find a bird cage and how to attach money to the neck of the pigeon inside. Carrying the money in a tiny bag, the pigeon flies off.
There have been at least four such pigeon pick-ups in Changwa. What at first seemed like the work of a clever stay-at-home car thief, however, may in fact be the work of an even lazier and more inventive criminal mind---- one that avoids（避免） not only collecting money but going out to steal the car in the first place. Police officer Chen says that the criminal probably has pulled a double trick: he gets money for things he cannot possibly return. Instead of stealing cars, he lets someone else do it and then waits for the car owner to place an ad in the newspaper asking for help.
The theory is supportd by the fact that, so far,none of the stolen cars have been returned. Also, the amount of money demanded----under 3,000 Taiwanese dollars-----seems too little for a car worth many times more.
Demands for pigeon-delivered money stopped as soon as the press reported the story. And even if they start again, Chen holds little hope of catching the criminal. “We have more important things to do,”he said.
(      66.After the car owner received a phone call, he ___________.
went to a certain pigeon and put some money in the bag it carried
gave the money to the thief and had his car back in a park
sent some money to the thief by mail
told the press about it
(     )67. The “lazier and more inventive”criminal refers to ________.
the car thief who stays at home           B.one of those who put the ads in the paper
one of the policemen in Changwa         D. the owner of the pigeons
(     )68.The writer mentions the fact that “none of the stolen cars have been returned” to show ____________.
how easily people get fooled by criminals B.what Chen thinks might be correct.
C. the thief is extremely clever.            D.the money paid is too little.
(     )69. The underlined word “they” in the last paragraph refers to ________.
A.criminals         B. pigeons                 C. the stolen cars            D.demands for money
(     )70. We may infer from the text that the criminal knows how to reach the car owners because ____________.
he reads the ads in the newspaper
he lives in the same neighborhood
he has seen the car owners in the park
D.he has trained the pigeons to follow them