问题
选择题
Old Richard, ill so long, is losing his memory and needs to be attended to.
A.to be
B.being
C.having been
D.to have been
答案
答案:C
题目分析:考查非谓语动词。老理查德,已经染病许久,正在丧失记忆力并需要得到照料。动词不定式表示将来,根据句意可知,染病是已经发生的事情,排除A、D;当两个动作先后发生时,常用having done,相当于一个原因、时间状语从句,这里相当于because he has been ill so long,故选C。