Idiom Meaning - Reinventing the Wheel

CMAT 2019 · Language Comprehension · Easy · Vocabulary

In the following sentence, what does the underlined phrase mean?

A good teacher is one who sees to it that a student does not waste time in reinventing the wheel?

  1. A.

    waste time on unnecessary details

  2. B.

    repeating oneself

  3. C.

    waste time in imaginary things

  4. D.

    doing something that has already been done

Answer

D

Explanation

The phrase "reinventing the wheel" means engaging time in doing/finding something that has already been created or done.

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