He found himself       by a crowd of excited people and       to escape.

A．surrounded; trying

B．surrounding; trying

C．surrounding; tried

D．surrounded; tried

小明从甲地到乙地去，去时每小时走5千米，回来时每小时走7千米，去时比回时多用了4小时。那么小明去的时候用了多少时间甲乙两地间相距多少千米( )

A．12小时60千米

B．13小时65千米

C．14小时70千米

D．15小时75千米