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.preparingC.to be prepared D.having prepared 英语
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【答案】 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.