choose the most suitable word to go with -present perfect-.

STUDY THE WORDS BELOW TO ANSWER THE QUIZ

FOR: " durante" I've lived here for two weeks

SINCE: "desde": I've lived here since I was born: que nací

YET: interrogativa:" ya": Have you seen it already ? "Ya lo has visto ?"
negativa: "aún no": I haven't seen it yet." Aún no lo he visto"

ALREADY: afirmativa: "ya" I've already seen it

JUST: "acabar de": She's just gone: acaba de irse

EVER: "alguna vez": Have you ever seen a flying saucer ?

NEVER: I've never seen a flying saucer. "nunca"