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"I was going to go shopping, but I went dancing instead."

"He discovered penicillin largely accidentally."

"Members of the public may not proceed beyond this point."

"My brother's decision to quit his job without another lined up was foolish. "

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

"He is a student of life."

"The student's answer contained several errors. "

"A portion of your mortgage payment goes to reduce the principal, and the rest covers interest."

"The teacher called out my name during attendance. "

"The presentation about the new school rules was very clear and easy to understand. "

"The storm during all night. "

"The sudden silence during my presentation began to embarrass me, making me forget what I was going to say next. "