I'VE KNOWN HIM _______ AGES, BUT I HAVEN'T SEEN HIM ________ I WASA...

5. - KIEM TRA 15 PHUT RAT NHIEU DE
KIEM TRA 15 PHUT RAT NHIEU DE

5. I've known him _______ ages, but I haven't seen him ________ I was

at university. ( since- since/ for -since / since -for / for -for)

II. Put the verb in brackets into the correct form.