A与D选项的区别 The spokesman was seated in front of all the audience at the conferen...
问题描述：
A与D选项的区别 The spokesman was seated in front of all the audience at the conferen...
A与D选项的区别 The spokesman was seated in front of all the audience at the conference ______ to answer all kinds of questions.
A.prepared B.preparing
C.to be prepared D.having prepared
答
D
理由 全句的主语是The spokesman ,和非谓语动词prepare之间应当是主动关系,因此排除
A、C; 又因为准备工作应当在就坐之前,所以用having done结构.