A-A+
The secretary worked late into the night _____
问题详情
The secretary worked late into the night,______ a long speech for the president.
A.to prepare
B.preparing
C.prepared
D.was preparing请帮忙给出正确答案和分析,谢谢!
参考答案
正确答案:B
解析:此处没有连词,不能选D,否则出现了两个谓语动词worked和waspreparing。只能在B或C中选一个。又因前后两个动作同时发生,且与主语为主动关系,故应用现在分词。