单项选择题


A．know
B．knowing
C．known
<上一题 目录 下一题>
热门 试题

单项选择题
He enjoys ______ on business trips with his boss.
A．going
B．to go
C．go
单项选择题
Dr. Naismith thought ______ a few days and invented a kind of ball game.
A．of
B．for
C．on
相关试题