单项选择题

Because fuel supplies are finite and many people are wasteful, we will have to install_______ solar heating device in our home.

A．some type of
B．some types of a
C．some type of a
D．some types of
<上一题 目录 下一题>
热门 试题

单项选择题
The problem has ______simply because you didn’’t follow my instructions.
A．raised
B．aroused
C．risen
D．arisen
单项选择题
______ you as soon as I know what______.
A．I’’ll phone...does happen
B．I’’ll phone...has happened
C．I am phoning...happens
D．I am going to phone...happens
相关试题