Ok I don’t know what it’s the lesson 4, but you have to use “Usted” because you tell your mom how make your favorite recipe, for example you can say, “Mamá usted me puede hacer mi receta favorita de esta manera” you tell her how make.
I hope this help you!❤️
Vosotros is informal and Ustedes is formal
“le gusta” would fit in the blank.
The answer for question 33 is Mi amigo está en Perú.