选用括号里的词填空I have stood at the bus stop-----(for\since)thirty-

I have stood at the bus stop__since___(for\since)thirty-five minutes ago.The bus hasn't come__yet___(already\yet)
Don't complain.The people over there have___already____(already\ever) waited for the bus for a longer time
My good friend and I haven't seen each other___for____(in\ for)four years