alacrity

"I hope we can begin immediately."

"The dog cautiously approached the sleeping cat. "

"The puppy's liveliness made everyone in the family smile. "

"The student's enthusiasm for history was a form of divine inspiration, making him memorize facts effortlessly. "

"The leaky faucet in the kitchen is a problem that needs fixing. "

"to respond to a question or an argument"

"The children were running to catch the school bus. "

"He is a student of life."

"The dog was happily wagging its tail when the children came home from school. "

"Her eagerness to learn new things made her a great student. "

"My younger sister is very toward; she learns new things quickly and easily. "

"The complicated instructions on the new software difficult me from completing the project on time. "