or

"My teacher explained the new math concept, and I understood it perfectly. "

"The teacher asked us to write down five propositions for improving our school's recycling program. "

"The application of this cream should reduce the swelling."

"The school administration is responsible for managing the daily schedule. "

"Considering different colleges opened up many new possibilities for her future. "

"The sudden disjunction between the train cars caused a loud crash and brought the train to an abrupt halt. "

"My grandmother used a spreadsheet to track the monthly expenses for her household. "

"It took him only twenty minutes to perform the task."

"BBC is an initialism for British Broadcasting Corporation."

"If you miss your curfew, a consequence is having to stay inside and do chores. "

"A pound of apples is the equivalent of two dollars at the market. "

"The school offered an alternative schedule for students who needed more time to study. "