Not until most of the people had left the
题型:单项选择题
问题:
Not until most 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
Not until most 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