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"My brother uses the underground to get to work every day. "

"The government decided to raise taxes to fund new schools. "

"the resistance of bacteria to certain antibiotics"

"Her efforts to convince her parents to let her go to the party were unavailing; they remained firm in their decision. "

"The doctor is operating on the patient's leg. "

"My friend studied hard for the test; therefore, she got a good grade. "

"The student's leadership in the class project helped the team succeed. "

"The bug spray was ineffective; the mosquitoes were still biting us. "

"We have an available candidate."

"The communist argued for sharing school supplies equally among all students. "

"The student spoke emotionally about her disappointment in the test results. "

"The school's political represented the students' concerns to the principal. "