$\text{Chào buổi sáng nha <3}$
1 . She didn't stop learning German until the age of 24.
=> It wasn't until the age of 24 that she stopped learning German
2 . We didn’t find out about the meeting until he phoned us.
=> It wasn't until he phoned us that we found out about the meeting
3 . I didn’t know how to ride a bicycle until I was 15.
=> It wasn't until I was 15 that I knew how to ride a bicycle
4 . I didn’t get up until half-past ten.
=> It wasn't until half-past ten that I got up
5 . He didn’t have enough money unitl he got a part-time job.
=> It wasn't until he got a part-time job that he had enough money
$\text{Chúc bạn 1 ngày vui vẻ <3}$