题目内容
（请给出正确答案）
[单选题]
Police dog are _______ in the war on drugs.
A.fearful
B.blunt
C.invisible
D.indispensable
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rning, they found a dog in their garden. They took the dog in, gave it some meat, and watched it go into a corner and go to sleep. They decided to let the animal stay overnight, and to look for its owner in the morning. Then they left home to pay a visit to their daughter in Inverness.
They came home at about eleven. As they opened the front door, they were welcomed by a snarling (狂吠的) boxer, standing with bared teeth. Any attempt to calm the animal met with angry barking. Soon all the neighbors were awake, and came out to offer helpful advice.
Then the fire brigade was called. They arrived at midnight. But all their attempts only made the dog more violent. They couldn’t get near it. The fire brigade gave up and called the police. When they arrived, it was one in the morning, and nearly all the villagers were gathered in MacGregor’s garden. The police thought about it. They advised that the dog should be shot.
However, someone went for an expert dog handler. This expert arrived at two in the morning with a huge Alsatian. He said, “This won’t take long”.
But it did. Two animals stood and stared and snarled at each other. It was a draw.
Then a vet (兽医) was sent for. By the time he arrived, it was 4 a.m. He borrowed a rope, made a lasso (套索), and threw the loop over the boxer’s head.
He dragged it into the garden, stuck a needle in it, and put it to sleep. The police removed it.
MacGregor said, “This animal will make a wonderful watchdog. But the new owners must be prepared to stay indoors for a few days until the dog gets to know them.”
16. What breed is the dog in the story？
A. Alsatian. B. Lasso. C. Boxer. D. Watchdog.
17. What did Mrs. MacGregor do with the dog before they left home to visit their doughter？
A. They tied it in the garden. B. They kept it in a lockd room.
C. They let it loose in their house. D. They put it to sleep with medicine.
18. What did the dog do when Mr. And Mrs MacGregor returned from their visit to their
daughter？
A. The dog welcomed them home.
B. The dog bit them because it was hungry.
C. The dog wanted to get out of their house.
D. The dog did not let them enter their own house.
19. What did the neighbors do when they were woken up？
A. They used their own dogs to help.
B. They complained and called the police.
C. They tried to help the couple out with advice.
D. They were very angry and wanted to kill the dog.
20. Who finally succeeded in keeping the dog under control？
A. The vet. B. The fire fighters.
C. The police. D. The expert dog handler.
