# [Jelly], 15 [bytes]

    ḲJɓḲ⁾""j$€⁹¦Kð€

**[Try it online!][TIO-jvje0vw0]**

### How?

    ḲJɓḲ⁾""j$€⁹¦Kð€ - Link: list of characters, S
    Ḳ               - split (S) at spaces -> A
     J              - range of length -> I = [1,2,...len(A)]
      ɓ          ð€ - for each (i in I) with swapped arguments -> [f(S, 1), f(S,2), ...]
       Ḳ            -   split (S) at spaces -> B
             € ¦    -   sparse application...
              ⁹     -   ...to indices: chain's right argument, i
            $       -   ...action: last two links as a monad:
        ⁾""         -     literal list of characters = ['"', '"']
           j        -     join (with B[i]) -> (e.g. with ['i','s']) ['"','i','s','"']
                K   -   join with spaces


[Jelly]: https://github.com/DennisMitchell/jelly
[bytes]: https://github.com/DennisMitchell/jelly/wiki/Code-page
[TIO-jvje0vw0]: https://tio.run/##y0rNyan8///hjk1eJycDyUeN@5SUslQeNa151Ljz0DLvwxuAzP@H2yP//w/JyCxWAKLk/JTU9PycNAA "Jelly – Try It Online"