Multiple choice

Directions: Fill in the blank with the appropriate option.

Answer the questions at the back of the book and make ....... that you check your answers carefully.

  1. obvious

  2. definite

  3. sure

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

The phrase 'make sure' is a standard English idiom meaning to ensure or verify that something happens. In the context of checking answers carefully, 'sure' is the correct word to complete this common expression. 'Make definite' and 'make obvious' are not standard collocations.

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