circumstances

"It was an incident that he hoped to forget."

"The condition for getting a raise at work is meeting your quarterly targets. "

"The snowstorm made it impossible to drive to work, so I stayed home. "

"The teacher pointed out a particular detail in the math problem that several students missed. "

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

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

"The large oak tree surrounding the picnic area provided welcome shade. "

"She cancelled the incorrect answer on the test with a thick black line. "

"Instead of directly saying he was late, John used a lot of circumlocution, explaining in detail about traffic, his alarm clock, and his neighbor's dog. "

"The school's peaceful surroundings made it a great place to study. "

"The complicated instructions on the new software difficult me from completing the project on time. "

"Give your keys to the parking attendants and they will park your car for you."