Choose the best option to replace the underlined part to improve the given sentence. If no substitution is required, select 'No substitution.'
We must prevent him to making the same mistake again.
Show answer & explanation
Correct answer: B
Explanation
The verb 'prevent' is typically used with the preposition 'from' when indicating that someone is being stopped from doing something. The correct grammatical structure is 'prevent [someone or something] from [verb-ing]'.