题目内容
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
D
解析:
本题主要考查对句子结构的理解。根据句子中的walked onto…and seated himself…可知,句子表示几个动作的延续,应该用几个动词的并列答案选D。
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