单项选择题

______ is known to the world, Mark Twain is a great American writer.

A. That
B. Which
C. As

D. It
<上一题 目录 下一题>
热门 试题

单项选择题
The atmosphere is as much a part of the earth as ______ its soils and the water of its lakes, rivers and oceans.
A. are

B. is

C. do

D. has
单项选择题
The professor can hardly find sufficient grounds ______ his argument in favour of the new theory.
A. for which to base

B. on which to base
C. which to be based on

D. which to base on
相关试题