The answer for this question would be:
a. True
<span>Los abuelos son amables is the correct choice</span>
Nicaragua, along with Costa Rica, El Salvador, Guatemala, Honduras, and the Dominican Republic, signed the Central America – Dominican Republic – United States Free Trade Agreement (CAFTA-DR) in August 2004. The agreement entered into force for Nicaragua and the United States on April 1, 2006. In 2010, Central American countries, including Nicaragua, signed a trade agreement with the European Union. In 2014, a partial free trade agreement came into effect between Nicaragua and Cuba. Additionally, Nicaragua has trade agreements with Mexico, Panama, Taiwan, Chile, and the Dominican Republic.
16) Correct
20) Yo
22) Ellas corren a la escuela
23) Soy
26) aprende
27) luz, papel, examen
31) Nosotros comemos en la mesa
40) Correct, although it needs a question mark but the words are correct
42) correct
45) Necesitas unos papeles?
I hoped this helped and if you need any more help in Spanish please feel free to ask me! - Maria S.