单项选择题

Some of the scientists assert that there is ______ UFO in the world.

A．no such thing as
B．no such thing as an
C．no such a thing as a
D．no such thing as a
<上一题 目录 下一题>
热门 试题

单项选择题
A．thereB．overC．outD．in
A．there
B．over
C．out
D．in
单项选择题
A．commonB．generalC．usualD．regular
A．common
B．general
C．usual
D．regular
相关试题