Certificate C - Test 41
We know what we are, but know not what we may be.
Shakespeare-Hamlet

Find the mistakes

Choose the test by :  -  Questions :
  • 01

    If one is invited out to a dinner, it is perfectly proper to go either with or without no a gift.

  • 02

    The human ear cannot hear a sound that vibrates less than 16 times the second.

  • 03

    Some tree frogs can alter their colors in order to blend to their environment.

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