单项选择题

This matter is of ______ importance.

A．second
B．secure
C．safe
D．secondary
<上一题 目录 下一题>
热门 试题

单项选择题
Some of the house on the hillside are ______ to cars.
A．impossible
B．incompetent
C．installed
D．inaccessible
单项选择题
Jack wishes that he ______ness instead of history when he was at university.
A．studied
B．study
C．had been studied
D．had studied
相关试题