分类：教育/科学-外语学习
问题：英语选择题分析？Notuntilmostofthepeopleh 
？Not until mt of the people had left the airport ______ his sister was there.A. that he saw B. had he seen C. did he see D. that he had seen 答案：C.
回答：把not until放在前面，主要是为了强调
原始句子是：He didn't see his sister until most of the people 
had left the airport.根据这个句子的didn't 可知应该选C
这句话还可以改写为：No sooner had most of the people had left the airport then he saw his sister.