Carl lost his job. The poor man had so little money that he spent his days at home. He watched his neighbor’s room, where an old professor lived, He found that the room was full of antique（古董）furniture and vases. Then an idea came up to his mind, “Why not take an antique vase? l could sell it for a lot of money. ”

Carl had an old gun. It had been his great-grandfather’s favorite thing long time before. Carl didn’t want to use the gun but he thought, “Anything could happen.” He wanted to hide the gun under his coat but it was too long, so he cut the end off.

The next morning he watched the professor leaving home. Carl broke the window and entered the house. He reached his hands towards a vase when he heard a noise. Someone entered the house. lt was the professor. He had forgotten to take an important document (文件). Carl became afraid and pulled out the gun. “ l haven’t stolen anything. Don’t come near or l’ll shoot,” cried Carl. “With that gun?” asked the professor, “ you can’t shoot with that antique gun. Its place is in a museum.”

“Really?” asked Carl. “How much is it worth?”

“lt was worth about 17,000 dollars,” said the professor, “but now you can get 10 dollars for it.”

“Why?” asked Carl.

The professor said, “Because its end is missing.”

1．According to the passage, Carl wanted to steal because　　　　　 .

A．He was interested in collecting antique vases and furniture　

B．He hated his neighbor very much

C．He needed money at the time　　　　　 D．He is a professional thief

2．The reason for Carl cut the end of the gun off is that　　　 .

A．the end of the gun was useless　 B．the gun was too long for him to hide

C．the end cost a lot of money　 　 D．the end of the gun was broken

3．Why did the professor come back?　　　

A．He returned back for a document　　　　　 B．He was free that day

C．He found something wrong in his house　　 D．He saw Carl enter his house