Multiple choice general knowledge math & puzzles

Which part has an error?Firstly you should (a) think over the meaning of the words (b) and then use them. (c) / No error (d)

  1. a

  2. b

  3. c

  4. d

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

While 'Firstly' is used in some dialects, 'First' is generally preferred as an adverb at the start of a sequence in formal writing. However, many grammarians consider 'Firstly' acceptable. If an error must be found, (a) is the conventional choice in competitive exams.