题目

题型：不详难度：来源：

The professor walked onto the platform and seated himself in a chair,________ for answering questions.

A．had prepared	B．being prepared
C．preparing	D．prepared

答案

D

解析

be prepared for="prepare" for为……作准备,故B、C、D三项从语法上都合题,但B、C项表动作,D项表状态。由题意知,此处须用过去分词作状语,表示伴随状态。