单项选择题

The last half of the nineteenth century ______ the steady improvement in the means of travel.

A．has witnessed
B．was witnessed
C．witnessed
D．is witnessed
<上一题 目录 下一题>
热门 试题

单项选择题
The government is laying to do something to ______ better understanding between the two countries.
A．raise
B．promote
C．heighten
D．increase
单项选择题
The newspaper did not mention the ______ of the damage caused by the fire.
A．range
B．level
C．extent
D．quantity
相关试题