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    • Member Info
      • Native Language:
      • Chinese
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      • Taiwan
      • Current Location:
      • Taiwan

    • Join Date: Jan 2016
    • Posts: 224
    #1

    At the age/at the cost of/at a cost of/at a speed of/at the speed of/at a or the pric

    1.
    He died at the age of 80.
    - Can I say at AN age of...?

    2.
    She saved him from the fire but at the cost of her own life.
    - Can I say at A cost of...?

    3.
    A new computer system has been installed at a cost of 8, 000.
    –Can I say at THE cost of…?

    4.
    The truck was traveling at a speed of 50mph.
    -Can I say at THE speed of...?

    5.
    There particles travel at the speed of light. -Can I say at A speed of...?

    6.
    I bought the bicycle at a/the price of NT$ 3,000.
    -Between "a" and "the", which is correct?
    Last edited by Rover_KE; 17-Jan-2016 at 14:11. Reason: Enlarging font.

  1. MikeNewYork's Avatar
    • Member Info
      • Native Language:
      • American English
      • Home Country:
      • United States
      • Current Location:
      • United States

    • Join Date: Nov 2002
    • Posts: 24,983
    #2

    Re: At the age/at the cost of/at a cost of/at a speed of/at the speed of/at a or the

    1-5 no.

    6. I would use "the".

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