extemporized

"We prepared the spacecraft for takeoff."

"The apéritifs were particularly stimulating."

"My friend told me there was something in the box, but I didn't know what it was yet. "

"What is your question?"

"The comedian made everyone laugh at the school talent show. "

"The pianist played an impromptu during the family gathering, creating a cheerful atmosphere. "

"The evening's entertainment was a wonderful family dinner. "

"The architect planned the building for the client."

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

"He made a spontaneous offer of help."

"The teacher used the microphone to project her voice clearly to all the students in the large classroom. "

"He had no speech prepared, so he improvised."