stand

"My sister and I have a strong partnership in our school project; we work well together. "

"My grandma enjoys birdwatching in her backyard, where she can see many different types of birds. "

"the performance of an undertaking or a duty"

"She felt a wave of embarrassment when she realized she had called her teacher "Mom" in front of the whole class. "

"Once we had eaten and drunk sufficiently, we padded off to sleep."

"The distribution of the school supplies was done fairly, giving each student an equal amount. "

"Black is very distinguishable against a white background"

"The student's late submission was an infringement of the school's policy on homework deadlines. "

"The responsible for the project is Maria. "

"The composition of the band's new song involved several different instruments. "

"The presentation about the new school rules was very clear and easy to understand. "

"the performance of an undertaking or a duty"