单项选择题

He has made another discovery, ______ of great importance to science.

A．which I think it is
B．of which I think it is
C．which I think is
D．I think which is
<上一题 目录 下一题>
热门 试题

单项选择题
When she heard the news, her hope ______disappointment.
A．got
B．turned in
C．turned to
D．felt
单项选择题
—Who are you going to have this letter______ for you？—My secretary.
A．type
B．typed
C．been typed
D．been typing
相关试题