emergency

"He is an unusual individual."

"I hope we can begin immediately."

"His sudden appearance surprised me."

"I brush my teeth regularly to prevent them from turning yellow."

"My younger brother loves playing basketball after school. "

"The unexpected snowstorm was an unforeseen obstacle to the school field trip. "

"The heavy rain was unexpected; we had planned a picnic in the park. "

"The United States is in an awkward situation with debt default looming."

"The school's science department focuses on biology and chemistry. "

"Computer users these days expect immediate results when they click on a link."

"The frequent occurrence of noisy construction near my house has made it hard to concentrate on my studies. "

"Cardiac arrest is an emergency and if you find someone in cardiac arrest you should call 999 immediately."