单项选择题

At the later stage of development, there ______ new problems which first seemed insoluble.

A．rose
B．arose
C．resulted
D．happened
<上一题 目录 下一题>
热门 试题

单项选择题
The popularity of the novel proves that some criticism against it is ______.
A．improved
B．misguided
C．unreasonable
D．unjustified
单项选择题
A．ButB．OrC．ThereforeD．Otherwise
A．But
B．Or
C．Therefore
D．Otherwise
相关试题