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
<上一题 目录 下一题>
热门 试题

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
单项选择题
Scarcely ______ when it began to rain.
A. did he return


B. had he returned
C. he did return


D. he had returned
相关试题