阅读下面短文，从每题所给的四个选项A、B、C、D中选出最佳选项。

　　Don't try telling Mark Bouch that dogs are man's best friends. His pet Keilar helped land him in prison.

　　She dropped his package of amphetamine(安非他明) at the feet of police as they began a search of his house.

　　Bouch, 26, was confident that the two officers would not find the package after he hid it in the bathroom.

　　But he failed to make allowances for dogs' natural instincts and now he is starting a nine-month prison sentence.

　　Michelle Lockhart, 20, Mark's girlfriend at the time, said yesterday:“I put the dogs into the bathroom to get them out of the way. The next thing I knew, Keilar had a package in her mouth. Mark had hidden it in the bathroom and it was just on the floor in there.”

　　“I couldn't believe it when the dog came out and put it right in front of the policemen.” “It was just following its instinct to pick things up. The police looked as surprised as I was and Keilar just looked really pleased with herself. She really gave the game away. I haven't spoken to Mark since it happened.”

　　The police had arrived at the couple's home in Wigton, Cumbria, after a warning. They were puzzled to see one of their suspect's pets run out from behind a chair with a package in her jaws.

　　It is believed Keilar had found the drugs in the bathroom before moving quickly down behind the furniture and then presenting the officers with her find. Detective Constable(警官) James Little, who was in charge of the case, said:“Somebody had a bag of amphetamine and when the police arrived, it disappeared, rather rapidly. The dog, following its natural instinct, went and picked it up in its mouth and brought it back.”

　　Bouch, who has 82 previous convictions(被判有罪的) mostly for dishonesty, had denied(否认) possessing amphetamine with intent to supply but was convicted at Carlisle Crown Court.

　　His pets are being cared for by relatives while he is in prison.

　　Lockhart has been sentenced to 240 hours' community service for the same charge.

　　The judge said she escaped because of her immaturity(未成熟) and lack of previous convictions.

1．What would be the best title for the text?

[　　]

A．Mark Bouch was put into prison

B．The dog that sent its owner to prison

C．Dogs are not man's best friends

D．Police caught their suspect

2．We can infer from the text that “instinct” means ________.

[　　]

A．born ability

B．power to do something

C．natural honesty

D．special curiosity

3．Which of the following shows the right order of what happened in the story?

a．－The police arrived at the Mark's home.

b．－Bouch was at Carlisle Crown Court.

c．－The dog picked up the package of amphetamine.

d．－Mark hid the amphetamine.

[　　]

4．The police looked surprised when the dog put the package in front of them because ________.

[　　]

A．they found their suspect was honest

B．they had made a wrong decision

C．they found the dog was an excellent police dog

D．they hadn't thought the dog would find the evidence for them