单项选择题

I' ve never seen the young man ______ next to the director.

A．sits
B．sitting
C．sat
D．to sit
<上一题 目录 下一题>
热门 试题

单项选择题
Either of the children ______ quite capable of looking after the baby.
A．are
B．be
C．is
D．have been
相关试题