Only after a person has realized the importance of knowledge, ____________.
She had just finished her homework __________ her mother asked her to practise playing the piano yesterday.
The girl had hardly rung the bell __________ the door was opened suddenly, and her friend rushed out to greet her.
As is reported, it is 100 years __________ Qinghua University was founded.
He had no sooner finished his speech __________ the students started cheering.
If a lot of people say a film is not good,I won't bother to see it,or I'll wait __________ it comes out on DVD. A. whether B. afterC. though D. until