单项选择题

Pigeons can carry messages for about _____.

A．two weeks
B．four weeks
C．two years
D．four years
<上一题 目录 下一题>
热门 试题

单项选择题
Race horses are hard to train because they are _____.
A．faster than other horses
B．smaller than other horses
C．more suspicious than other horses
D．more nervous than other horses
相关试题