This archaeologist made a study of the vast area through which the Roman civilization has been propaqated.()

单项选择题Fearful of losing her job for good, this lady decided to talk to the manager directly.()

A.for benefits
B. by luck
C. for ever
D. at hand.

单项选择题An important innovation in this college was the introduction of the seminary method for advanced students.()

A. idea
B. change
C. matter
D. policy