单项选择题

Only rarely ______ earthquakes occur in the United States east of the Mississippi River.

A．had
B．when
C．that
D．do
<上一题 目录 下一题>
热门 试题

单项选择题
In the United States, a primary election is a method ______ voters select the nominees (被提名的候选人) for public office.
A．that
B．by which
C．is that
D．by those
单项选择题
Visitors have ______ to the City Hall during the vocation.
A．admission
B．allowance
C．approval
D．access
相关试题