Multiple choice general knowledge

They learned all their lines for the play _____.

  1. from heart

  2. to heart

  3. in heart

  4. by heart

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The correct answer is 'by heart' because 'learn by heart' is the correct English idiom meaning to memorize something completely. 'From heart', 'to heart', and 'in heart' are not standard English expressions.