Verbal Ability/Word-usage Practice

Verbal Ability/Word-usage

Choose the option in which the usage of the word is incorrect or inappropriate: back

A. After the primary negotiations collapsed, the committee realized they were back to square one, requiring a complete re-evaluation of their strategy.
B. The seasoned cartographer knew the intricate geological formations of the region like the back of his hand.
C. Despite the overwhelming odds, the dedicated researchers continued to put their backs into the project, hoping for a breakthrough.
D. The international organization vowed never to turn its back from the plight of refugees, committing to provide continuous humanitarian aid.

The incorrect or inappropriate usage of the word "back" is in the fourth option: "The international organization vowed never to turn its back from the plight of refugees, committing to provide continuous humanitarian aid."
Why it's wrong:
The standard idiomatic expression is "to turn one's back on someone or something," meaning to abandon, disregard, or refuse to help. The preposition "from" is incorrect in this context.
Correct usage: "The international organization vowed never to turn its back on the plight of refugees, committing to provide continuous humanitarian aid."

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