First of all, you need to translate this sentence in order to find out which word to use to fill the gap. 'A comb and ___ are used to comb or brush your hair.' So, the word we need here is a brush. In Spanish, the word brush is el cepillo.
because cuento means story Not puerta because that is door nor is it casa because that is house and it is not calle because that is like streets or neighborhood
