What is the correct conjunction for estar?

What does it mean to conjugate a verb? how do you conjugate verbs in spanish?

Read and select the correct option for the blank. an exchange student from mexico brings a typical food from his culture to school. after you ask, what can he say? —hola, amigo fernando. yo como el ceviche. —¿eres de méxico? —sí, soy de méxico y come la tortilla escribo la yerba mate escribe la yerba mate como la tortilla

Ive been trying to figure this out for a week now , you basically explain how to get to each place (bottom right) starting from starting point , pls i need 1-10 by monday