Multiple choice

Directions: Fill in the blank with appropriate option.

Some of the pupils are intelligent; others are slow _______

  1. in understanding

  2. understanding

  3. taking things in

  4. taking in things

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

The phrase 'slow in understanding' is the correct idiomatic construction to contrast with 'intelligent'. Other options are grammatically awkward or redundant in this context.