单选题We support the view that poor management will ______ business failure.

单选题The scarves have a variety of designs and sell at reasonable prices.A．这些围巾有各种各样的设计图案，可以以合理的价格出售。B．这些围巾有很好的设计，所以卖了合适的价格。C．很多各种各样图案的围巾以合理的价格出售。D．围巾的花样很多，价格也很公道。

单选题It is hard to cheat in the exams without ______ .

单选题I prefer to live in the countryside rather than______in a city.

单选题During the war, many armymen were killed by this ______ gas.

单选题The English language has a vivid saying to describe this kind of phenomenon.A．语言中有活泼的表达方式和处境。B．英语中有很说法来说明这种情况。C．英语中有一个生动的说法来形容这种现象。D．英语语言有着很生动的活力。

单选题My impression of the service in the hotel was that it had really ______.

单选题If you ______ your mind, please call me at this number before Saturday.

单选题He didn't do well in this examination. He ______ hard at all his lessons. A. must have worked B. needn't have worked C. shouldn't have worked D. ought to have worked

单选题I was ______ which country to visit in the coming summer vacation.

单选题How often are letters delivered in your country? Are letters delivered to each person's door? Is mail kept at the post office until someone goes there to get it? If someone lives far from a post office, how does he get his mail? In the United States, most people who live in cities and small towns receive their mail at home. Letters are delivered to the family's door every day. Some people have boxes or baskets for letters beside the front door. If there is no box or basket, the letters are pushed through an opening in the door. Large packages are sometimes left besides the door. Many Americans live on farms which are far from any city, town, or village. Their mail is delivered to boxes on the roads near their farms. Every day the farmers who live near this road come to their mail- boxes. Mail is delivered to farmers' mailboxes every day. This mail service is called Rural Free Delivery. Rural Free Delivery is also known as RFD.

单选题Really? An MP3 player for 10 dollars is a great bargain. is it real though?A．真的吗?一个MP3卖10美元是个很棒的交易。但它是正品吗?B．真的吗?一个MP3卖10美元是个很棒的讨价还价。但它是正品吗?C．现实吗?一个MP3玩家卖10美元是个很棒的交易。但它是正品吗?D．真的吗?一个MP3卖10美元是个很棒的交易。但它是真的吗?

单选题Putting money in basic science would ______ considerable benefits for the country"s health, wealth and security.

单选题Peter could ______ that she was bored. A. tell B. look C. speak D. show

单选题This is the machine ______ tomorrow.

单选题I hope they ______ the bridge by the time we leave at the end of this month.

单选题Some cities have planned their transportation systems for car owners. That is what Los Angeles did. Los Angeles decided to build highways for cars rather than spending money on public transportation. This decision was suitable for Los Angeles. The city grew outward instead of upward. Los Angeles never built many tall apartment buildings. Instead, people lived in houses with gardens. In Los Angeles, most people drive cars to work. And every car has to have a parking space. So many buildings where people work also have parking lots. Los Angeles also became a city without a Central Business District (CBD). If a city has a CBD, crowds of people rush into it every day to work. If people drive to work, they need lots of road space. So Los Angeles developed several business districts and built homes and other buildings in between the districts. This required more roads and parking spaces. Some people defend this growth pattern. They say Los Angeles is the city of the future.

单选题Never before ______ so highly successful in changing his surroundings. A. man has been B. man is C. has man been D. is man

单选题______ had the supermarket opened than people were flocking to shop there. A. No sooner B. Nowhere C. Hardly D. If

单选题It is easy to show that intelligence is to some extent something we are born with.