Are these four correct yes or no?

The only one wrong would be the clean one but I think the rest is alright

Number one should be: limpiamos
Number two is correct

Yes it is correct like that is there anything else you need to add ?

Choose the correct answer. what does this trip remind charlie of? the walks he took with his family to camp in the desert for one night. the excursion that he made in the fifth grade to the salt mines. the expensive price of salt in supermarkets in his town. the crafts they bought in guatemala.