单选题—Doctor, are you ______ it's nothing serious? —Yes, he's just caught a cold. A. afraid B. ready C. sure

单选题Mike hit ______ and he fell down on the ground.

单选题Whatdoesthewomanthinkabusinessmanshouldbe?

单选题Of the six passengers in the compartment ______.

单选题What prevents Jack, an experienced taxi driver, working for Capes Taxi? [A] Unable to speak a foreign language. [B] Punished for speeding and wrong parking. [C] Not having college education.

单选题 McDonald's is the world's largest food company and serves more than 40 million customers every day. The golden 'M' trademark of McDonald's symbolizes (代表，象征) to many people far more than just a hamburger restaurant. To Americans, it represents the success of the American dream. Since the opening of the very first McDonald's restaurant in 1955, the number of restaurants has grown to more than 25,000. The company employs (雇佣) nearly 170,000 people. Americans feel that this sort of success is only possible in America, and are proud that the hamburger has taken over (占领) the world. Most people like eating familiar food. It is partly because of this that McDonald's has grown so quickly. When we see the golden 'M', we know what to expect. Whatever language the shop assistant speaks, we know that we will be able to buy the same hamburgers in any one of 117 countries around the globe. When Americans abroad go to a McDonald's restaurant, they know that, along with their hamburger and fries, they will also get a little bit of home. McDonald's is a powerful symbol of America.

单选题Our English teacher comes ______ England.

单选题I prefer the blue trousers. May I ______? A. try it on B. try on it C. try them on

单选题Nobody ______ how to run this machines. A. know B. have known C. knows

单选题Who gave a talk at the meeting?

单选题I'll tell her about the meeting ______ she comes back.

单选题He ______ the house twelve years ago.

单选题The medical team ______ the village if it snows again tomorrow. A. doesn't leave B. won't leave C. don't leave

单选题Do you know something about tree rings? Do you know they can tell us what the weather was like, sometimes even hundreds of years ago? We can see the change of weather by studying the tree rings. For example, to find out the weather of ten years ago, count (数) the rings of a tree from outside to the inside. If the tenth ring is far from the eleventh ring, then we are sure that it was sunny most of that year. If it is near to the eleventh ring, then the weather that year was bad. Tree rings are important not only for studying the history (历史) of weather but also for studying the history of man. Many centuries ago there lived a lot of people at a place in New Mexico. But now you can find only sand there? A scientist studied the rings of dead trees there. He found that the people had to leave because they had cut down all trees to make fires and buildings. As all trees had gone, the people there had to move.

单选题I don't know why I______.

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