单选题At last, about twent7 people ______ at the meeting.

单选题The thief ran away at the ______ of two policemen.

单选题Many employers seem to ignore the Equal Pay Act.

单选题A.8:15.B.8:45.C.9:45.D.9:15.

单选题I am afraid I'm not fond of the trip, and ______ my friends. A) so did C) so were B) nor did D) nor were

单选题We considered ______ to California at first, but decided not to in the end.

单选题A good breakfast is important for reasons obvious to everyone. By breakfast time you have not eaten anything for twelve hour. Your body needs food. You must get up early to have plenty of time to eat breakfast. With a good breakfast, you will find yourself work better and play more happily. Your whole day will be more fun after you have enjoyed a good breakfast.

单选题Vince is Learning Chinese in my class. Andy.A) So isB) So doesC) Nor doesD) Neither is

单选题Owing to space research, TV pictures can be transmitted______. A) live B) alive C) living D) lively

单选题Mary ______ crazy. She burst into laughter now and then for no reason at all. A) must go C) must have gone B) may be going D) could have gone

单选题______ to my surprise, she failed in the College Entrance Exam.

单选题These photographs will show you ______.A) what does our village look likeB) how does our village look likeC) what our village looks likeD) how our village looks like

单选题Whether that is a good solution depends on______.

单选题I hope they ______ this road by the time we come back next summer. A. have repaired B. will repair C. are to repair D. will have repaired

单选题You'd better ______ your computer before you use it again. A. observe B. begin C. check D. pick

单选题In the second half of each year, many powerful storms are born in the tropical Atlantic and Caribbean seas. Of these, only about half a dozen generate the strong, circling winds of 75 miles per hour or more that give them hurricane status, and several usually make their way to the coast. There they cause millions of dollars of damage, and bring death to large numbers of people. The great storms that hit the coast start as innocent circling disturbances hundreds—even thousands—of miles out to sea. As they travel aimlessly over water warmed by the summer sun, they are carried westward by the trade winds. When conditions are just right, warm, moist air flows in at the bottom of such a disturbance, moves upward through it and comes out at the top. In the process, the moisture in this warm air produces rain, and with it the heat is converted to energy in the form of strong winds. As the heat increases, the young hurricane begins to swirl in a counter-clockwise motion. The average life of a hurricane is only about nine days, but it contains almost more power than we can imagine. The energy in the heat released by hurricane's rainfall in a single day would satisfy the entire electrical needs of the United States for more than six months. Water, not wind, is the main source of death and destruction in a hurricane. A typical hurricane brings 6-to 12-inch downpours resulting in sudden floods.

单选题Each educational system is not perfect in a strict sense, which has its______.A) limitationsB) lineC) frontD) advantage

单选题Cars are an important part of life in the United States. Without a car most people feel that they are poor. And even if a person is poor he doesn't feel really poor when he has a car. Henry Ford was the man who first started making cars in large numbers. He probably didn't know how much the car was going to affect American culture. The car made the United States a nation on wheels. And it helped make the United States what it is today. There are three main reasons why the car becomes so popular in the United States. First of all, the country is a huge one and Americans like to move around in it. The car provides the most comfortable and cheapest form of transportation. With a car people can go anyplace without spending a lot of money. The second reason why cars are popular is the fact that the United States never really developed an efficient and inexpensive form of public transportation. Long- distance trains have never been as common in the country as they are in other parts of the world. Nowadays there is a good system of air-service provided by planes. But it is too expensive to be used frequently. The third reason is the most important one, though. The American spirit of independence is what really made cars popular. Americans don't like to wait for a bus, or a train or even a plane. They don't like to have to follow an exact schedule. A car gives them the freedom to schedule their own time. And this is the freedom that Americans want most to have. The gas shortage has caused a big problem for Americans. But the answer will not be a bigger system of public transportation. The real solution will have to be a new kind of car, one that does not use so much gas.

单选题 Never give out identifying information such as home address, school name, or telephone number in a public message such as chat or newsgroups, and be sure you're dealing with someone both you and your children know and trust before giving out this information via E-mail. Do not post photographs of your children in newsgroups or on web sites that are available to the public. Never allow your child to arrange a face-to-face meeting with someone they "meet" on the Internet. If a meeting is arranged, make the first one in a public place, and be sure to accompany your child. Remember that people online may not be who they seem. Because you can't see or even hear the person it would be easy for someone to misrepresent him or herself. Thus someone indicating that "she" is a "12-year-old girl" could in reality be a 40-year-old man. Remember that everything you read online may not be true. Any offer that's "too good to be true" probably is. Be careful about any offers that involve you going to a meeting, having someone visit your house, or sending money or credit-card information. Remember that personal computers and online services should not be used as electronic babysitters. Get to know your child's "online friends" just as you get to know all of their other friends.

单选题They usually have less money at the end of the project than ______ at the beginning.