【单选题】Not until he failed the exam _______he had left his books untouched .
【单选题】Not until most of the people had left the airport __________his sister was there.
【单选题】It’s high time you . [ ]
【单选题】Not until he left his home _____ to know how important the family was for him.
【简答题】The story I am going to tell you happened about three years ago when I started to learn how to drive. At first, I was very frightened, and I thought I could never learn how to drive a car. Driving a c...
【单选题】Not until he left his home ______ to know how important the family was for him.
【单选题】Not until he left home ________ the importance of his family.
【单选题】It's high time you _____.
【简答题】Before Carol started to work,she learned how to