【单项选择题】
Not until most of the people had left the airport（）his sister was there.
A、A.that he saw
B、B.had he seen
C、C.did he see
D、D.that he had seen
查看正确答案
A、In the 13th century a Black Rod went between the two Houses of Parliament for liaison and to discipline the members. B、In the 13th century Parliament only met by royal invitation. C、In the 13th century Parliament's role was to offer advice,not to make decisions. D、In the 13th century the most important part of Parliament was the House of Lords.
