frequencies

"The local radio station is broadcasting the school's graduation ceremony live this afternoon. "

"My sister and I both got good grades on the test; she got an A, and I got a B, respectively. "

"The liftoff will occur in exactly twelve seconds."

"The science teacher conducted an experiment to demonstrate how plants grow in different types of soil. "

"The sudden increase in student absences is a noticeable phenomenon. "

"The frequency of bus service has been improved from one every 15 to one every 12 minutes."

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

"My teacher has a good relationship with all her students. "

"The incidence of students arriving late to school increased this week. "

"The addresses on the envelopes were smudged, making it difficult to deliver the mail. "

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

"We visit our grandparents infrequently, only a few times a year. "