Without immediate repairs, the bridge is ___ risk of collapse. A. in B. at C. on D. under Explanation: The phrase is at risk when something is in danger.
The lawyer spoke ___ behalf of the witness. A. on B. in C. at D. with Explanation: The phrase "on behalf of" is used when representing someone.
The situation is finally ___ control after yesterday's confusion. A. in B. under C. with D. by Explanation: The phrase "under control" indicates a manageable situation.
The factory produces 800 units a day ___ average. A. in B. on C. at D. by Explanation: The idiom is on average for a typical amount.
She claimed to be unavailable; ___ fact, she was already in the lobby. A. on B. at C. in D. by Explanation: The idiom is, in fact, when correcting or clarifying.
___ first, I thought the call was a prank. A. At B. In C. On D. By Explanation: The idiom is "at first," meaning the initial stage.
The manager discussed the proposal ___ detail after lunch. A. in B. on C. with D. by Explanation: The idiom is explained in detail for clarity.
Some actors can still recite Shakespeare ___ heart. A. by B. off C. in D. with Explanation: The idiom is by heart for something memorized fully.
The invitation was addressed ___ hand in blue ink. A. by B. in C. on D. with Explanation: The idiom "by hand" means something written manually.
I took your charger ___ accident; ours look identical. A. by B. on C. in D. at Explanation: The idiom is by accident for an unintended act.