Write in correct english
1. I have lived in HCM city since twenty years
2. The haven't saw such as terrble fire before
3. The house was cleaned up since we left for Nha Trang
4 .the international olypic games continued without interrupt zince 1896
5. We didn' try hard enough since the second semester
6. I have know this singer since she has been 16 year old
7 . People enjoyed beethovan's music for nearly 200 years
8. The boy played seccer since 2 o' clock
9.All my classmates knew each other quite well since they were in grade 6
10. These dancers performed that ballet quite well many time