语法与词汇 As is known to all, it is parents’ responsibility to ensure children’s regular _____ at school.

【正确答案】 B

【答案解析】句意：众所周知，保证孩子按时上学是父母的责任。attendance出席。reservation保留，预订。persistence持续，坚持。presentation演出，陈述，报告。