单项选择题

His father is a ______ professor in a prestigious university.

A．respectful
B．respectable
C．respecting
D．respective
<上一题 目录 下一题>
热门 试题

单项选择题
We must ______ that the experiment is controlled as rigidly as possible.
A．secure
B．ensure
C．assure
D．issue
单项选择题
It has been estimated that the earth's surface temperature has increased ______ one quarter to three quarters of a degree since 1850. ~
A．to
B．by
C．at
D．with
相关试题