The doctors are ________ about the guidelines under which they can carry out euthanasia.
B
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。
“ You ask me for Julia, and you do not possess even an anna! (Here the old ”— rogue ______ broadly, as if he had made a capital pun.)
He shook hands with the visitors ________ as to convey his apology.
______ the new plan can be carried out will be discussed at the meeting tomorrow.
We will ______ you as soon as the new crop comes to the market.