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"The nurse carefully changed the dressings on the patient's burn to prevent infection. "

"My sister is painting her bedroom walls a cheerful yellow. "

"My brother regularly takes the bus to school. "

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

"The bike chain was squeaking loudly, so I applied lubricant to it to make it run smoothly. "

"The factory used petroleum to fuel its machinery. "

"To prepare the bicycle for its first ride of the season, I lubricated the chain. "

"The mechanic fixed the broken bicycle chain. "

"The villagers lived in unhealthy surroundings."

"The waiter carried the trays of food smoothly, avoiding any spills. "

"The carpenter is sticking the pine boards today to make the cabinet doors. "

"The meadow was covered in colorful wildflowers. "