oxide

"The prisoners were kept in a secure compound. "

"The rust on my bicycle chain made cycling to work very dangerous."

"Letters are the elements of written language."

"The school is located five miles of the town center. "

"Do you want to come with?"

"We need oxygen to breathe. "

"My grandmother used iron pots to cook delicious meals. "

"My teacher wrote the letter "a" on the board to demonstrate its shape. "

"The computer program uses a binary system, where each file is either "open" or "closed." "

"My sister has an older brother. "

"The scientist studied the chemical composition of the soil sample. "

"There is one sterling and here is another"