Select the most appropriate option that can substitute the underlined segment in the following sentence. If there is no need to substitute it, select ‘No substitution required’.
The invigilator did not know that the four friends were exchanging notes right at the front of him.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. in front of him.
The correct phrase is "in front of him" not "at the front of him".
"In front of" refers to the position or location relative to someone or something.
Example: The tree is in front of the house.
Hence, the chosen option is correct.