1. lavabo toalla despertador jabón
2. manos antes de después de por último
3. acostarse jabón despertarse dormirse
4. espejo lavabo despertador entonces
5. dormirse toalla vestirse levantarse
6. pelo cara manos inodoro
7. espejo champú jabón pasta de dientes
8. maquillarse vestirse peinarse dientes
9. baño dormirse despertador acostarse

This exercise requires to choose the word that does not belong to each group, according to the category.

Explanation:

1. lavabo toalla despertador jabón : the word that does not belong to this group is despertador is an object to wake up. All the others are objects related to cleaning.

2. manos antes de después de por último : the word that does not belong to this group is manos, this is a part of the body and the others are adverbs of time.  

3. acostarse jabón despertarse dormirse . the word that does not belong to this group is jabón, it is an object and all the others are reflexive verbs.

4. espejo lavabo despertador entonces : the word that does not belong to this group is entonces, this is an adverb of sequence and all the others are objects.

5. dormirse toalla vestirse levantarse : the word that does not belong to this group is toalla (towel), this word is an object and all the others are reflexive verbs.

6. pelo cara manos inodoro : the word that does not belong to this group is inodoro (toilet), all the others are parts of the body and inodoro is an object in the bathroom

7. espejo champú jabón pasta de dientes : the word that does not belong to this group is espejo (mirror), all the others are cleaning and care products

8. maquillarse vestirse peinarse dientes : the word that does not belong to this group is dientes (teeth) this word is a part of the body and all the others are verbs of daily routine.

9. baño dormirse despertador acostarse: he word that does not belong to this group is baño (bathroom), this is a room in the house and it is not related to sleep and wake up.