Complete the idiom (keep someone at a distance) “Once you suspect a person of double-dealing, you ought to keep him at arm’s ______.” Choose the correct word that completes the idiom.

Given data

• Idiom meaning: keep someone at a safe/hostile distance.

Concept/ApproachThe fixed English idiom is “keep (someone) at arm’s length.”

Option analysislength — correct set phrase.distance — similar meaning but not the idiom.reach/end — incorrect here.

Final Answerlength