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"The student adjusted her chair so she could see the board better. "

"The competition for this job is strong."

"He removed the marbles from the bag."

"The factory's efficient manufacture of toys allowed them to sell many at a low price. "

"The editor composed a historical journal from many individual letters."

"Do you want me to continue to unload these?"

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

"The new recruit was a strong and effective soldier, ready for basic training. "

"The machinist carefully assembled the new engine for the school's science lab. "

"The surgeon's precision during the operation ensured a quick and successful recovery for the patient. "

"to sharpen a pencil or a knife or a musical note"

"He will need lots of practice with the lines before he performs them."