sensors

"The teacher waited patiently for a responds from the student. "

"Smoke detectors are mandatory in public buildings."

"The shop's external displays were designed to attract customers. "

"an economic stimulus"

"bodily organs"

"There are a number of household devices in a kitchen such as a dishwasher, a garbage disposal, or an electric can opener."

"Her distinctive laugh, a high-pitched giggle, could be heard across the entire playground. "

"The smoke detector detects smoke and sounds an alarm. "

"The certain success of the project was a relief to the team. "

"My sister learned to write in a very careful manner. "

"The smoke from the burning leaves filled the air. "

"My family's house is located near the school. "