It ’ s time for me ____ (leave) for Beijing.适当的形式填空

It's time for me to leave for Beijing.
There are a few books and a pen on the desk.I can hear her singing in the next room now.
What kind of work do you use the machine to do?

It ’ s time for me to leave____ (leave) for Beijing. 适当的形式填空
检举|1 分钟前提问者： Jenniferjr|浏览次数：2次
There _are__ (be) a few books and a pen on the desk. I can hear her _singing__(sing) in the next room now. What kind of work do you use the machine _to do__ (do)?

to leave
are singing
to do

to leave
are singing
to do