11. Hello!I        ( not know) you        (be) in London. How long have you been here?

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3. ―      I meet you at the airport? ―Please don't bother. I can take a taxi.

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5. He made another wonderful discovery,      I think is of great importance to science.

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6. My parents often told me "Things        (lose) never come again！"

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  1       When a person does a certain thing again,he is impelled (迫使) by some unseen force to do the same thing repeatedly;thus a habit is formed. Once a habit is formed,it is difficult,and sometimes impossible,to get rid of.

  2       Children often form bad habits,some of which remain with them as long as they live. Older persons also form bad habits,and sometimes become ruined by them. 3       Many successful men say that much of their success has something to do with certain habits in early life,such as early rising,hon?esty and thoroughness. Among the habits which children should not form are laziness,lying,stealing and so on. 4       Unfortunately older persons often form habits which ought to have been avoided. 5      

   A. There are other habits which,when formed in early life,are of great help.

   B. Whether good or not habits are,they are easy to get rid of.

   C. We ought to keep away from all these bad habits,and try to form habits that will prove good for ourselves and others.

   D. These are all easily formed habits.

   E.It is therefore very important that we should pay great attention to the for?mation of habits.

   F.Habits,whether good or bad,are gradually formed (形成) .

   G.It is very important for us to know why we should get used to good habits.

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9. ―A study shows cigarette smokers have lower IQs than non-smokers.        (absolute) . That's why I am much smarter than you.

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2. It was said that it would be at least three more months      he could recover and return To work.

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4. I received a strange phone call yesterday. What a bad day I have!

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5. ―What about walking along the (海濱) in the sunset? ―A good idea.

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