Which one will be correct if I'm trying to convey a meaning saying that somebody has arrived some place for the first time?<br/><br/>Like "Is this the first time you've been to LA?" or "Is it your first time to be here in LA?" or even "Is it your first time being here?"<br/><br/>Which one is correct?<br/><br/>To the best of my knowledge, the latest one will be the most commonly-used and correct and the least clumsy as well.<br/><br/>TIA