The secretary worked late into the night, ______a long speech for the president.
题型：不详难度：来源：
The secretary worked late into the night, ______a long speech for the president.| A．to prepare | B．preparing | C．prepared | D．was preparing |
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答案
| B |
解析
| 现在分词作状语时，其逻辑主语必须和主句的主语保持一致，也就是说主句的主语是现在分词动作的执行者。现在分词作状语也可表示时间、原因、伴随情况、结果等。故选B。若句中逗号改为句号时，可选A作目的状语。 |
举一反三
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