Choose the best option to replace the underlined part to improve the given sentence. If no substitution is required, select 'No substitution.'
It is awful that they have decided to back out against the agreement at the last moment.
Show answer & explanation
Correct answer: B
Explanation
Correct Answer: Back out of
Explanation
• The correct phrasal verb is back out of, which means to withdraw from a commitment, promise, or agreement before it is fulfilled.
• The phrase 'back out against' is an incorrect combination of prepositions.
• Example: You promised to assist us, so you cannot back out of the project now.