The volcanoes page of the ready.gov website is there to inform people who are under a volcano warning of what to do, and to explain the basics of what a volcano is. This is helpful to people who live near volcanoes and have the potential to be harmed by an eruption.
Answer:
Make no change is the answer.
He created an obstacle by lying about where he lives
Presenting the idea and supporting it with details. - one builds upon an idea with examples and evidence.
A central idea is often referred to as the main idea. The main idea is what the paragraph is mostly about, which in this case is, "tests that are constructed around fill-in-the-blank". Tan builds on this central idea by providing examples and evidence of support that explains what she means by this.
She was looking for something lost