单项选择题

In the experiment we kept a watchful eye ______ the developments and recorded every detail.

A．in
B．at
C．for
D．on
<上一题 目录 下一题>
热门 试题

单项选择题
He gives ______ to his anger by kicking chairs.
A．vent
B．rig
C．hose
D．curb
单项选择题
The sight of a sick horse being driven along the streets of the village remained ______ him for weeks.
A．of
B．on
C．to
D．with
相关试题