It's too difficult to finish the work in there hours.I think so.let 's_____A work harderB go homeC take exercises 急用!
问题描述：
It's too difficult to finish the work in there hours.I think so.let 's_____
A work harder
B go home
C take exercises 急用!
答
选A
答
A吧.应该是three hours吧.