395.Experts have been warning _____ of the health risks caused by passive smoking.

A.at a time

B.at one time

C.for some time

D.for the time

396.She devoted herself _____ of the health and it earned her a good reputation in her field.

A.strongly

B.extremely

C.entirely

D.freely

395.答案是C;

此题考查与time相关的介词短语。At a time 一次；at one time 曾经；for some time 长达一段时间。由have been warning可知选C。

396.答案是C；

strongly 强烈地；extremely 极端地；entirely 完全地；freely 自由地。句意:她全身心地投入研究工作，这使她在其领域中赢得了良好的声誉。