单选题They suggested that an agency be created to carry out the recommendation of the committee.

单选题This ______ was conducted to find out how many people prefer TV series to films. A. examination B. inspection C. analysis D. survey

单选题The invisible rays of the ______beyond the violet end are called the ultraviolet rays.

单选题The following refers to Jack, an experienced taxi driver. What prevents him working for Capes Taxis?

单选题The fire was finally brought under control, but not ______ extensive damage had been caused. A. after B. before C. since D. as

单选题Which color is the most helpful for keeping a good mood? 

单选题Dear Tom,You asked me why I like living in New Mexico.I like it（21）it is so beautiful.We havemountains,mesas平顶山,rivers,and forests.Mesa is the Spanish（22）for a broad,flat-toppedmountain.For 12 years,I

单选题The United Nations Security Council established the ICTR in 1995 to try the alleged perpetrators of the 1994 ______ in Rwanda that claimed the lives of more than 800,000 people. A. genocide B. immigration C. discrimination D. election

单选题______his sister, Jack is quiet and does not easily make friends with others. A. Dislike B. Unlike C. Alike D. Liking

单选题I bought a new house last year, but I ______ my old house yet, so at the moment I have two houses.

单选题Her husband is interested in designing electronic ______. A. management B. safety C. devices D. routine

单选题The teacher asked her students to stop ______ in class. A．make a noise B．to make any noise C．made any noise D．making any noise

单选题Trees are useful to man in three important ways: they provide him with wood and other products; they give him shade; and they help to prevent droughts and floods. Unfortunately, in many parts of the world, man has not realized that the third of these services is the most important. (78)In his eagerness to make money from trees, he has cut them down in large numbers, only to find that without them he has lost the best friends he bad. And besides, be is usually too careless to plant and look after new trees. So the forests slowly disappear. This does not only mean that man will have fewer trees. The results are even more serious: for where there are trees, their roots break up soil—allowing the rain to sink in—and also bind the soil, thus preventing it from being washed away easily; but where there are no trees, the rain falls on hard ground and flows away, causing floods and carrying away the rich top-soil. When all the top-soil is gone, nothing remains but worthless desert. Two thousand years ago a rich and powerful country cut down its trees to build warships, with which to gain itself an empire. It set up the empire but, without its trees, its soil became poor and it grew weak. When the empire fell to pieces, the home country found itself faced with floods and starvation.

单选题A: You have no difficulty finding the answer to the question? B: ______.

单选题After his uncle died, the young man ______ the beautiful estate with which he changed from a poor man to a wealthy noble.

单选题We all feel sorry for ______ for so long after your arrival.

单选题It is very expensive to ______ the fashion.

单选题They were enjoying themselves. ______, they appeared to be enjoying themselves.

单选题Is there a gas station around______I can get some petrol?