It is reported that a bus went out of ______ control on a highway ______ south of the city last night.

A．/; /

B．/; the

C．the; /

D．the;/ the

包玉刚先生为了宁波大学的建设投入了大量财力精力，更多次走校园看望教师同学。他先后共（）次走进宁大校园。

A.3

B.4

C.5

D.6