The children went home from the grammar school, their lessons _____ for the day. [ ]

A. finishing

B. finished

C. had finished

D. were finished

钩端螺旋体病治疗首选

A．大剂量青霉素

B．小剂量青霉素

C．环丙沙星

D．四环素

E．庆大霉素