Question

Ребят помогите с английским нужно вставить for или since

1)I have been studying in this school_____ the 1st grade.

2)I have lived in the city ____10 years

3)_____I passed to the 10th grade i have been trying to study

4)Jim has been my best friend_____ 5 years,______ the art club

Answer 1

1)I have been studying in this school since the 1st grade
2)I have lived in the city for 10 years 
3)Since I passed to the 10th grade i have been trying to study
 4)Jim has been my best friend for 5 years, since the art club