专四

单选题_______ that the demand for gasoline continues to rise at the current rate, it will not be long before its price rockets to a terribly high level.

A.Ascertaining 
B.Assuming 
C.Concerning 
D.Regarding

参考答案:B进入在线模考
【译文】假定对汽油的需求量仍以当前的比率持续上扬,那么汽油价格飙升到高价位将为期不远。
【解析】ascertain“确定(事实),探知”;assume“假定,假想”,assuming相当于given that;concern和regard均可作动词,但concerning和regarding还可作介词,意思为“有关,关于”,后面不直接跟that从句。B为正确答案。