nights

"Astronomers use telescopes to study planets and stars. "

"The competition for this job is strong."

"The student used the new vocabulary list to learn the names of different flowers. "

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

"Students are permitted to use calculators during the math exam. "

"From this vantage point we can observe the behavior of the animals in their natural habitat."

"The children rushed home before nightfall. "

"My daughter is fascinated by astronomy; she spends hours studying the positions and movements of stars and planets. "

"My science class requires us to use astronomical charts to identify constellations. "

"Construction is underway on the new bridge."

"The cat was sleeping on the couch, but when I came back, it had disappeared. "

"The beginning of the school year is always exciting. "