Which meal of the day is the largest in many spanish-speaking countries

Can someone me with these questions ?

Which phrase describes bad dining etiquette? a. share food with others b. stay at the table until everyone finishes eating c. do not waste food. d. make noise while eating

10. choose the answer that best completes the sentence. los (necesitar) papel. (2 points) a: necesitan b: necesitamos c: necesito d: necesitáis