The witness described the suspect ___ detail. A. in B. on C. with D. by Explanation: The idiom is explained in detail for a full description.
He knows the multiplication tables ___ heart. A. by B. off C. in D. from Explanation: The idiom is by heart for complete memorization.
The note on the parcel said "Delivered ___ hand." A. by B. in C. on D. with Explanation: The idiom is by hand for direct manual delivery.
She called me by my sister's name ___ accident. A. by B. on C. in D. at Explanation: The idiom is by accident for something unintentional.
Report the leak to maintenance ___ once. A. at B. in C. on D. by Explanation: The idiom is at once for immediate action.
The hotel asks guests to pay ___ advance for airport transfers. A. in B. on C. by D. at Explanation: The idiom "in advance" means payment made beforehand.
He knocked on the window ___ purpose to wake us up. A. on B. by C. for D. with Explanation: The idiom is used intentionally for an intentional action.
We found this tiny café ___ chance while walking through the old quarter. A. by B. on C. in D. with Explanation: The idiom is by chance for a random discovery.
An adult should always be close ___ hand near the pool. A. in B. on C. at D. by Explanation: The idiom is at hand for something nearby and ready.
A senior officer is ___ duty tonight. A. at B. in C. on D. under Explanation: The phrase is on duty for someone currently assigned to work.