The doctors are ________ about the guidelines under which they can carry out euthanasia.
A、atastretchB
本题考查的是短语区分。A.不休息地，连续地;B.不知所措，茫然，不了解;C.任意的，随便的;D.最后，终于。句意：医生们不了解执行安乐死的准则。
This _____ factor means that there is often a connection in appearance and temperament between parents and children.
Motivation and personality may ________ the varying d egrees of success in one ’s career.
As it involves only a small ___ , we hope you will have no difficulty on promotion.( )
This offer is ____ your reply reaching us before May 5th.
He has deep love for the people and ________ loyalty to the country.
