You could fill it in with a lot of different words depending on the region, but I would personally go with either quisquilloso or exigente. Both mean picky eaters in this situation.
¿Por qué quieres ir de vacaciones?
When we have to use "por qué" if it is a word, it must be <u>separated</u> ("por qué"), but if it is a <u>response</u>, it must be joined ("porque").
Remember that the interrogatives of a question must <u>ALWAYS</u> have an accent.
<h3><em><u>MissSpanish</u></em></h3>
Nothing happened that date its just asking you to translate