单选题—There isn't ______ water here. Could you get ______ for me? —All right.

单选题______ people knew what to do with tea at that time.

单选题Having decided to buy a car, he started to ______ his money.

单选题Something is wrong with my bike. I must have it ______ this afternoon.

单选题It was ______ that saved the man's life 20 years later.

单选题--Where is Li Ping? --She ______ Beijing.

单选题They don't know if it ______tomorrow. If it______, they will not go to the park.

单选题I've already ______ for the dinner. Shall we go now?

单选题A hundred (41) years ago there were a lot of dinosaurs (恐龙) in the world. Some lived on land. Some lived in the sea. Some (42) fly. A lot of them (43) very large and some had horns (角) or long teeth (44) the monsters (怪物) in films. Most of the dinosaurs were plant-eaters, but some of them could kill (45) eat very big animals. The world was full of dinosaurs for 135 million (百万，百万个) years. 60 million years ago, however (然而，不管怎样), they were (46) dead. (47) happened to them? Some scientists say that about 65 million years ago the world's climate (气候) (48) cold (寒冷的，伤风) and this cold climate killed the dinosaurs. Now we eau only see dinosaur bones (骨骼) in (49) , but we can not see a (50) dinosaur any more.

单选题

单选题Whatdoweknowfromthetalk?A.Mr.Greenisstilllivinginthevillage.B.Mr.Greenhasmovedtoabigcity.C.Mr.Greennolongerlivesinthisworld.

单选题I don't know the school, but it's ______ to be quite a good one.A. toldB. spokenC. said

单选题--______ do you go to see your grandparents? --Once a week.

单选题Study English hard, ______ you'll fail the exam.

单选题-- Could you tell me what day today is? -- Of course. It's ______.

单选题The Internet joins millions of computers all over the world, and today it is used by people all over the world. It was invented in the 1960s in the USA. The American government needed a network of computers for its army. Then in the 1970s scientists and businesspeople also wanted to use the Internet to send and receive messages. For some years, they weren't allowed to use the US network, and when they were allowed to, the messages were in very simple text without photos. The World Wide Web was invented by a British scientist named Tim Berners-Lee in 1989. He wanted to send documents with text, drawings and photos (also called multimedia documents). In the 1990s, more and more people began to use the Internet and the World Wide Web. So what's the difference between the Internet and the World Wide Web? The Internet is the hardware. It allows us to communicate with other people. The world Wide Web is the software. It allows us to create, see and read multimedia documents. The web is made up of millions of documents called web pages. These pages are held in computers all over the world. Many people have a favourite website with a number of web pages on the same subject. Email is a way of using your computer to send and receive messages. It's cheaper and quicker to use email than send normal mail. New users call normal mail "snail mail" because it's so slow! It took 50 years for 100 million people to listen to the radio. It took 15 years for 100 million people to watch television. By the year 2000, it had taken only about three years for 100 million people to use the Internet. What will happen next on the Internet?

单选题A.B.C.