worry

"After a storm the sea is in agitation."

"He is a student of life."

"She has had a persistent cough for weeks."

"The strong winds troubled the still water in the lake, creating ripples. "

"My sister is very helpful, especially when it comes to organizing things. "

"He repeatedly violated the court order, and shall now be punished."

"The president of the student council used last year's debate as a precedent for this year's election rules. "

"My mother's instance that I finish my homework before dinner was quite strong. "

"He raised his hand to make his announcement and said "Excuse me everyone, I have an announcement to make."

"He threatened me with a knife."

"The upcoming school holiday is a welcome break for the students. "

"The politician spoke at the school assembly about the importance of community involvement. "