We all know about the_____ that smoking can do to our health.
C
暂无解析
It’s___(reasonable)to expect people to work more than 60 hours a week.
If you have difficulty locating a particular book ，please ask our librarians for___(assist).
I_____him150dollarsandmustpayhimbacktomorrow.
That is ______ we differ.
The question he asked was _______ I come here.