Multiple choice

Directions: Select the most appropriate preposition to fill up the blank.

Rising oil prices calls ____ efficient use of energy resources.

  1. off

  2. upon

  3. for

  4. of
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

“To call for” is an idiom which means “to be the requirement of” which is conveyed in the given sentence. Hence, (3) is the correct answer.

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