After the heavy snow, many students helped to clear away the snow in our school.A. willin

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(答案→)A. willingly
B. sincerely
C. properly
D. calmly
解析：考查副词，A. willingly自愿地，B. sincerely真诚地，C. properly适当地， D. calmly冷静地，句意是：大学之后，很多学生自愿帮助学校清除雪。选A。