| 1.By the year 2050, the problem of pollution ________ . |
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| 2.Do you mind my taking this seat? --__________. |
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| 3.I sold my old car to _______me to buy a better computer. |
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| 4.The government should take _________ to protect the environment. |
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| 5.A humane gene has been introduced into pigs to _______ them grow more quickly. |
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| 6.Tomorrow will be sunny. How about having a picnic in the park? --_________________ But I have to prepare for tomorrow's exam. |
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| 7.There were _________ students in the class ___________ the teacher couldn’t talk to them all. |
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| 8.Some whales ______ live many years |
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| 9.It's sunny today. How about going hiking? -- ____ |
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| 10.I lost my MP4 on my way home this afternoon. -- _________! You must be careful next time. |
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| 11.Nobody will become a hero without the help of others. --That's true.____________. |
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| 12.Excuse me, which is the way to the post office? --Sorry, I don't know .You can ask the policeman over there. --________________ |
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| 13.当你看到你的朋友脸色很不好看时，你会问_____________来关心她。 |
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| 14.About 50 countries are said ______ English as their official language. |
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| 15.当你在公共汽车上不小心踩了他人的脚时，你应该说_____________以示道歉. |
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| 16.______ Chinese ________ the predominant Internet language by 2050. |
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| 17. People learn English in order to benefit ______ developments in technology. |
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| 18.Hello! May I speak to Mary, please? -- ____. I'll go and get her. |
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| 19. At the moment over 1 billion people are said _____ English as a second language. |
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| 20.English is _______ important _________ many people are learning it. |
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| 21.Lisa,I will visit the 2010 World Expo（世博会）with my parents during the summer holiday. --________. |
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| 22.It ________ that Rainbow Warrior has led a successful campaign. |
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| 23.It's really nice of you to help me! --_________ |
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| 24.I had _________ homework to do ______ I couldn’t go out in the evening. |
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| 25.The sperm whale _________ dive deeper than any other cetacean. |
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| 26.E-book technology ______you to carry around a whole library in a small unit. |
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| 27. I check my emails ________ three hours. |
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| 28.________ the lessons are terrible. |
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| 29.I ________ learn English to get a better job. |
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| 30.Hi! Haven't seen you for ages? You look fine. --_________.You look well ,too. |
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| 31.Shall we see the movie today or tomorrow? --_____________ It's all the same to me. |
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| 32.If you make a mistake ,just say, "___________." |
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| 33.Many languages are ________ to die out. |
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| 34.It can ________ to taste different or to look different. |
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| 35.Come back quickly, Tom. --Sure, Mum. _______. |
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| 36.This is equivalent ________ eating a fully grown African elephant everyday. |
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| 37._______ has his own computer. |
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| 38.Liu Xiang had to give up the race because of his foot. --_________ |
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| 39.Can you come to my party on Saturday afternoon? --___________. I'll have to help my parents. |
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| 40.就餐时，朋友问你要不要加点汤，而你已吃饱，你会说_____________来委婉拒绝. |
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