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Clues

Avoid giving clues to the correct answer.

A : Weak question
A fertile area in the desert in which the water table reaches the ground surface is called an
  1. mirage
  2. oasis
  3. water hole
  4. polder


B : Improved question
A fertile area in the desert in which the water table reaches the ground surface is called a/an
  1. mirage
  2. oasis
  3. water hole
  4. polder

Example A uses the article "an" which identifies choice 'b' as the correct response. Ending the stem with "a/an" improves the question.

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Next: "All/None of the above"

 
 
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