单选题He had a clear ______of what was wrong with the machine and fixed it in a short time.

单选题To give praise ______ the giver nothing but a moment's thought and a moment's effort. A. costs B. tells C. benefits D. prizes

单选题Exposure to asbestos fibres can cause cancer ______.

单选题--Have you seen him recently? --Yes. I met him at ______ this morning. ( )

单选题John and I ______friends for eight years. We first got to know each other at a Christmas party. But we ______each other a couple of times before that.

单选题Like any teenagers, the face of One Teen Story is changing fast. Just a year old,the monthlymagazine of short fiction for young people is getting a new editor-in-chief: Patrick Ryan ,47, the asso-ciat

单选题Thatched houses are still preferred because of______.

单选题Several (people) in the crowd seemed (as) they were fighting (for) a (ticket).A. peopleB. asC. forD. ticket

单选题Par

单选题Fifty dollars ______ a big sum of money for a child.

单选题You would be ______ a risk to let your child go to school by himself. A. omitting B. attaching C. affording D. running

单选题When the letter from his wife arrived, he ______ the contents carefully. Because she hadn't answered his question, he was angry and tossed the letter into the fire.

单选题I ______ one of my old classmates in the street yesterday.

单选题The organization has so far raised $2.5 million to finance bone ______trans- plants for children.

单选题Harry Potter fans will instantly recognize the snowy owl as Harry’s famous companion.Hedwig，but these beautiful and powerful owls are easily recognizable not for their magical associations，but for the

单选题I appreciated ______ to the United States to study five years ago.

单选题Some ______ good luck brought us nothing but trouble.

单选题Passage One June came and the hay(干草) was almost ready for cutting. On Midsummer's Eve，which was a Saturday，Mr. Jones went into Willing ton and got so drunk at the Red Lion that he did not come back until midday on Sunday. His men had milked the cows in the early morning and then had gone out chatting without bothering to feed the animals. When Mr. Jones got back，he immediately went to sleep on the living-room sofa with the "News of the World" over his face. When evening came，the animals were still not fed. At last，they could stand no longer. One of the cows broke into the door of the storehouse with her horns and all the animals began to help themselves to the grains. It was just then that Mr. Jones woke up. The next moment he and his four men were in the storehouse with whips in their hands，whipping in all directions. This was more than the hungry animals would bear.Together，though nothing of the kind had been planned beforehand，they jumped upon their masters. Mr. Jones and his men suddenly found themselves being struck with the horns and kicked from all sides. The situation was quite out of their control. They had never seen these animals act like this before. This sudden rebellion of the creatures，which they were used to beating and whipping just as they chose，frightened them. After only a moment or two，they gave up trying to defend themselves. A minute later all five of them were in full fright down the road with the animals running after them joyfully. The four men did not feed the cows because_______.