Need help with number 10

How do i answer this? ¿dónde estás? ¿dónde está tu amigo/a?

Originally, uruguay was home to small groups of indigenous tribes. during european colonization, nearly all the indigenous population was conquered, killed, or driven out. in what year did the spanish explorers first land in the area? 1492 1945 1600 1516

Completa la oración con la voz pasiva con se. the cake was eaten. la torta. (there's no options, just phrase this in the passive tense, do not use google translate)