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 congress, bY a two-third vote in each house, may______an amendment to the Constitution.
A．start
B．initiate
C．begin
D．propose
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
相关试题