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"The children were excited to go to their classroom in the morning. "

""The teacher said the student's idea was figuratively a gold mine, meaning it was very valuable and full of potential, but not actually made of gold." "

"My grandmother uses the telephone to talk to her friends every week. "

"The man graduated in 1967."

"He listened carefully to his mother's concerns, feeling sorrowful about her disappointment. "

"The car's speedometer showed it was going 60 miles per hour. "

"The measurement of the room's length was important for ordering new furniture. "

"Different colors of light have different wavelengths, with red light having longer wavelengths than blue light. "

"The puzzle box was intricately designed, with hidden compartments and secret passages. "

"The radio waves used in the school's wireless network have a specific wavelength. "

"Many students use smartphones to access online learning resources. "

"The temperature in the room dropped nearly 20 degrees; it went from hot to cold."