contrite

"He went out in the rain and came back thoroughly drenched."

"The loud music from the construction site was disrupting the students' concentration during the exam. "

"I hope we can begin immediately."

"If the vase falls to the floor, it might break."

"He discovered penicillin largely accidentally."

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

"His tone was apologetic as he explained what had happened."

"I sincerely hope they make it home safely."

"My neighbour has two noisy cats."

"The penitent apologized to his teacher for disrupting class. "

"The run left him sweating profusely."

"My correspondent apologized for not answering my letter."