单项选择题

Now I regret ______ worked harder at school.

A．not to have
B．not have
C．not having
D．having not
<上一题 目录 下一题>
热门 试题

单项选择题
The patient suffering from a cough soon found ______ to give up smoking.
A．it is necessary
B．necessary
C．it necessary
D．that necessary
单项选择题
We have made up our minds and nothing can prevent us ______ on the experiment.
A．from carried
B．from being carried
C．carrying
D．to carry
相关试题