分类：教育/科学-外语学习-英语考试
问题：ThePrimeMinistergottotheplatform? 
The Prime Minister got to the platform and sat down ____to answer the questns.A.preparing B.being preparing C.prepared D.to prepare
回答：D  简单的不定式啊.如果要选A,应该要在down加逗号的吧.