Read the passage. Excerpt from “A House Divided” a speech by Abraham Lincoln “A house divided against itself cannot stand.” I be
lieve this government cannot endure, permanently, half slave and half free. I do not expect the Union to be dissolved—I do not expect the house to fall—but I do expect it will cease to be divided. It will become all one thing, or all the other. What does the house symbolize? the United States as a whole
the entire world
a government building
Abraham Lincoln’s home
We can tell that this sentence is referring to an event from the past when it says last month. Therefore the past tense of perform, which is performed, should be used.