2. Mary has been here        8:00  this morning.

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用方框中所給單詞的適當(dāng)形式完成短文 

or,health,important,stay,better,

feel，for，exercise，kind,if       

Aerobic exercise is good 1.         people.  It makes people 2.          happy and confident. Scientists find that aerobic exercise can also build the 3.       parts of your brain. Aerobic exercise makes more blood run into your brain and it also gives your brain a 4.          of matter that builds new nerves. 5.          the exercise has a lot of dance or basketball steps your brain will make more new nerves. As your nerves become stronger,your brain can learn new things and remember old ones 6.         . A study shows that taking exercise three 7.       four times a week is good for your 8.       . Another study shows that walking for forty-five minutes five times a week helpvS you live longer. So don’t 9.          at home all day long. Come out and take some 10.      .

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3.自從那時起，它變成了我生活的一部分。(since then)

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28. —Jim,you          (write) a letter to your father?

Yes,I have. I        (write) it yesterday.

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 6.        (也許) he’s forgotten what he said.

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(   ) 7. -Could you tell me where Lucy is? I have something important to tell her.

—Oh,she       the bookstore. She will be back soon.

   A. goes to       B. has gone to

   C. has been to   D. went to

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2. Peter turned off the computer after he finished          (write) an e-mail.

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4. They have known each other for 8 years.(改為同義句)

They have known each other        2007.

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(   ) 15. —All the volunteers (志愿者) were very tired,but         of  them took a rest.

—They were busy looking for the missing people.

   A. everyone   B. all   C. someone   D. none

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