We should stop ________ trees at will (随意)．

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• 1Not only ________ dance well, but he sings very well.

  A. he does    B. does he

  C. does    D. he

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• 2I think simple things like bike ________ can help to keep healthy.

  A. ride    B. riding

  C. to ride    D. rode

   

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• 3His work really ________ in the factory.

  A. makes a different    B. makes difference

  C. makes different    D. makes a difference

   

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• 4Food safety is important.Rules________ to protect people from food pollution.

  A. must make    B. must be made

  C. can't    D. can't be made

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• 5—Who is the little girl in the picture? —It's me. The picture __________10 years ago.

  A. took    B. is taken    C. has taken    D. was taken

  
  

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• 6According to our plan, a new teaching building ________.

  A. will build    B. will be built

  C. is built    D. builds

   

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• 7—Could I have a look at your pictures? —Yes, of course you________.

  A. could    B. can

  C. will    D. might

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• 8Miss Lin____________ a lot of work for the poor area since 2010.

  A. does    B. did    C. has done    D. will do

  
  

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• 9王洋是上海某社区垃圾分类监督员，下文是他对社区内外国留学生进行垃圾分类（garbage sorting)集中指导。根据下

                            Organizing your household garbage

  

  Dear foreign friends, glad to meet you here. Today I'd like to introduce new garbage sorting rules to you. In Shanghai, we are supposed to 1. the garbage into four groups, namely recyclable, harmful, dry and wet waste.  Paper, plastic, glass, and fabrics is 2. waste while food leftovers, plants, expired food is wet waste. Batteries, light tubes and 3. should be considered to be harmful waste. All other non-recyclable solid waste is called dry waste. We all believe that garbage sorting is 4. for the protection of the environment. Right? If people fail to sort their garbage, they will be fined up to 200 yuan. If all of us take pains to sort garbage, we'll lead a better life. So, let’s start right now.

  Give the foreign students a piece of advice about garbage sorting.

  5.

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• 10现有10gA和足量的B混合加热，A与B发生化学反应，10gA完全反应后生成8gC和4gD，则参加反应的A与B的质量比是（ ）

  A．5：1     B．4：1     C．2：1     D．1：1

  
  

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