单项选择题

The master is trying to search ______ to the problem of environment.

A．a reaction
B．an answer
C．a reply
D．a solution
<上一题 目录 下一题>
热门 试题

单项选择题
This is one of the highest buildings that ______ in our city.
A．are ever built
B．have ever built
C．have ever been built
D．were ever built
单项选择题
I have no doubt ______ most of you can graduate from here.
A．although
B．as
C．whether
D．that
相关试题