单项选择题

A．They are very. rewarding.
B．They are too time-consuming.
C．They are not helpful at all.
D．They are too troublesome.
<上一题 目录 下一题>
热门 试题

单项选择题
As the chairman of the students' union, Thomas was said __________ other students in need.
A．to help
B．to be helping
C．to have helped
D．to have been helped
单项选择题
Every one of us considers the combination of theory with practice as _________ vital importance.
A．for
B．of
C．to
D．with
相关试题