单项选择题

English and computer______two useful tools in preparing for one's career, we should do our best to have a good command of them.

A．having been
B．were
C．are
D．being
<上一题 目录 下一题>
热门 试题

单项选择题
If the earth suddenly ______ spinning, we would all fly off it.
A．stopped
B．had stopped
C．has stopped
D．would stop
单项选择题
______ the punishment was unjust, Helen accepted it without complaint.
A．However
B．So long as
C．Since
D．Even though
相关试题