单项选择题

Good travelers don't leave ______ on trains or airplanes.

A．rubbish
B．litter
C．garbage
D．pollutant
<上一题 目录 下一题>
热门 试题

单项选择题
His body temperature has been ______ for 3 days, the highest point reaching 40.5 degree centigrade.
A．uncommon
B．disordered
C．abnormal
D．extraordinary
单项选择题
Astronauts are ______ all kinds of tests before they are actually sent up in a spacecraft.
A．inclined to
B．subjected to
C．prone to
D．bound to
相关试题