——How time flies! It's already twelve o'clock.

  ——Oh, really? I        it at all.

 A.don't realize     B.didn't realize  C.haven't realized   D.hadn't realized

 

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You have waited 45 minutes for the valuable 10 minutes’ break between classes. But when the bell for the next class rings, you can’t   36   how quickly time has passed.

If you are familiar with this   37  , you’ll know how time flies when you are having fun-and  38   when you are bored. Now scientists have   39   a reason why this is the case.

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(一)

  假設(shè)你是李華,你的一位美國(guó)筆友Robert寫(xiě)E-mail問(wèn)及你高考后暑假的安排,請(qǐng)根據(jù)以下要點(diǎn),寫(xiě)一封E-mail回復(fù)他。

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Dear Robert,

  How time flies! ____________________________________________________________

__________________________________________________________________________

_____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

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