improv

"The tadpole changed into a frog.   Stock prices are constantly changing."

"I went to the park because the weather was nice. "

"It took him only twenty minutes to perform the task."

"He played a quick improvisation on the keyboard."

"Bill and Melinda maintained a dialogue via email over the course of their long-distance relationship."

"Be aware of interactions between different medications."

"We joined the audience just as the lights went down."

"I have a small suggestion for fixing this: try lifting the left side up a bit."

"The school's annual talent show was a great source of entertainment for the students and families. "

"The actors are rehearsing their lines before the play. "

"The teacher characterized the student as disruptive in class. "

"the performance of an undertaking or a duty"