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The secretary worked all night long, a long speech for the president. [ ] A.to p

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The secretary worked all night long, a long speech for the president. [ ] A.to p

The secretary worked all night long, ________ a long speech for the president.

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A.to prepareB.preparingC.preparedD.was preparing

试题答案

答案:B

解析:

preparing a long speech for the president在此作伴随状语。