My cousin stayed awake _____ night trying to think of a catchy slogan.

My cousin stayed awake _____ night trying to think of a catchy slogan.

• A. Every
• B. All
• C. Many
• D. Each

Answer: (B)

Describing the duration of a single night with a natural, fixed expression. When you want to say someone stayed up for the entire night, the natural collocation is “all night.” It fits with the singular noun night and means from evening until morning. The other options don’t fit with the singular night. “Every night” or “each night” usually refer to multiple nights and would normally go with the plural noun nights. “Many” also pairs with the plural form and isn’t used with night in this context. So the sentence sounds natural and correct as: “My cousin stayed awake all night trying to think of a catchy slogan.”

Describing the duration of a single night with a natural, fixed expression. When you want to say someone stayed up for the entire night, the natural collocation is “all night.” It fits with the singular noun night and means from evening until morning.

The other options don’t fit with the singular night. “Every night” or “each night” usually refer to multiple nights and would normally go with the plural noun nights. “Many” also pairs with the plural form and isn’t used with night in this context. So the sentence sounds natural and correct as: “My cousin stayed awake all night trying to think of a catchy slogan.”