Ответ:
- How long have you studied at this school? I have studied at this school for five years.
- How long have you had an email address? I have had an email address since I was twelve years old.
- How long have you liked your favourite TV programme? I have liked my favourite TV programme for six months.
- How long have you been at school today? I have been at school since 9:00 am.
- How long have you known your closest friend? I have known my closest friend since I was five years old.
- How long have you lived in your flat/house? I have lived in my flat/house for ten years.
