Answer:
Question 1: desayuno
Question 2: frutas
Question 3: cuenta
Question 4: mozo
Question 5: ensalada
Explanation:
I conclude the nouns that were requested between parenthesis. Esta mañana comí frutas en el desayuno (breakfast) . Mi compañero de cuarto come yogur de frutas (fruit yogurt, it could also have been an specific fruit: yougur de manzana/banana/durazno) . Nosotros pagamos la cuenta (bill, in this sentence an option could have also been "to pay the rent", but for the context I suggest "bill" is better). Yo le pedí el menú al mozo (waiter). Quiero una ensalada (salad) con lechuga, tomates y zanahorias.