Question

All of      sudden some passengers on_____board let out screams, running upstairs like      crazy.

A．a;/

B．the;the

C．a;the

D．the;/

Answer 1

A

试题分析：句意：突然，一些在船上的乘客发出尖叫，发疯地向楼上跑。第一空填a，all of a sudden突然，第二空不填，on board是固定短语“在车上，船上，飞机上”，所以选A。