[tlhIngan Hol] replying with {'oH}

In english (and greek if anyone wonders..) we can say: Is it true ? And someone can reply by saying "It is". In klingon if someone asks: {teH'a' ?} Can someone reply by saying {'oH} or {'oHbe'} ? Or is the only acceptable answer a {HIja'} or a {ghobe'} ? ~ nIghma'