Spotting Errors Questions

Multiple choice
  1. This is a problem

  2. which needs urgent attention

  3. here and now

  4. and once for all

  5. No error

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

The "which clause" introduces information that is not needed or is non-essential. If we left out the clause after 'which' then the gravity of the problem is not understood. So, we replace ‘which’ by ‘that’, as 'that clause' contains crucial information.