1. It was not until Nam and his brother were 10 that they swam.
2. It was not until 2005 that they began to learn English
3. It was not until his farther came home that the boy did homework
4. It is not until 11 p.m that John comes back
5. It was not until her birthday that she allowed to openned her presents.
6. It was not until we reached the top that we realized how far we had come.
7. It was not until the lights were on that the football match started.
8. It was not until Nga graduates from university that she became a teacher.
9. It was not until midnight that the boy went to bed
10. It was not until all the seats were full that the play began.
