Odpowiedź:
1.I learn English since the first grade.
2. My current teacher has been teaching me since 4th grade.
3.I have known my friend since over 7 years.
4.I haven't been to my relatives since about 4 days.
5.I have been going to my school since about 6 years.
6.I have lived in my house since I was born.
Wyjaśnienie: