incombustible

"The building of the bridge will be completed in a couple of weeks."

"The teacher explained the new math concept quickly. "

"The scientist carefully examined the substance to determine its chemical composition. "

"As everyone knew, he was capable of violence when roused."

"The cozy living room had a fireplace, perfect for warming up on cold winter evenings. "

"He spread his newspaper on the table."

""The runner is catching the leader in the last lap of the race." "

"I brush my teeth regularly to prevent them from turning yellow."

"Construction is underway on the new bridge."

"He burned his manuscript in the fireplace."

"Asphalt, composed of oil and sand, is a widely used material for roads."

"Gasoline is a flammable. "