单项选择题

The service operates 48 libraries throughout the country, while 18 ______ libraries specially serve the countryside.

A．drifting
B．mobile
C．shifting
D．rotating
<上一题 目录 下一题>
热门 试题

单项选择题
Not until three years ago ______ to work overseas.
A．he began
B．he begins
C．began he
D．did he begin
单项选择题
We feel it is high time that the government ______ something to curb inflation.
A．did
B．does
C．do
D．would do
相关试题