单选题This match made them ______ at last.A. happilyB. quicklyC. friendly

单选题Beijing is famous ______ its history.

单选题 Many people are surprised when they find the Internet was set up in the 1960s, At that time, computers were large and expensive. Computer networks (网络) didn't work well. If one computer in the network broke down, then the whole network stopped. So a new network system had to be set up. It should be good enough to be used by many different computers. If a part of the network was not working, {{U}}information{{/U}} could be sent through another part. In this way, computer network system would keep on working all the time. At first the Internet was only used by the government, but in the early 1970s, universities, hospitals and banks were allowed to use it too. However, computers were still very expensive and the Internet was difficult to use. By the start of the 1990s, computers became cheaper and easier to use. Today it is easy to get on-line and it is said that millions of people use the Internet every day. Sending e-mail is more and more popular among students. The Internet has now become one of the most important parts of people's life.

单选题 Long long ago there was no zero. To write the number sixty-three people wrote 63. To write six hundred and three, people wrote 6 3. The space between six and three was there to mean "not any" tens. Sometimes people did not remember the space. It was hard to see and read. Later people used a dot to hold the space. Six hundred and three looked like this 6·3. But the dot was hard to see. So people put a circle around it like this 6⊙3. Then people could see the dot. They remembered the space. At last, only the circle around the dot was used. It was like a zero. This is one story of how the zero came to be used. Now zero has many important uses. Zero tells how many. Can you tell some other ways of using zero?

单选题Can I have the key ______ the front door，please?

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单选题—My brother wants to be a doctor when he grows up. —so ______ I.A. doB. amC. will

单选题The change of weather made a lot of people sick.

单选题The twins are coming to Meirmei's house tonight. She will give them ______ to eat.

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单选题In fact Mr. Jones hoped that the person who would pick up the bag and that hat ______.

单选题______ the train will not arrive in half an hour, let"s have a cup of tea.

单选题-- What can I do for you?-- I'd like some ______. A. bottle of orange B. bottles of orange C. bottle of oranges

单选题Mr. Smith took the job, ______he did it very well.

单选题Our family are going to visit ______.