Multiple choice

Directions: In the following sentence, three substitutions are given for each italicised part. If one of them is better than the italicised part, that should be your answer. If none of the substitutions improves the sentence, the answer should be (4).

You must explain as to why you were late.

  1. about why

  2. on why

  3. why

  4. No improvement

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

There is no error in the given sentence. As to means as for, about, according to and by.