Pacing in regards to writing is the rate at which big events happen. For example, a story would have slow pacing if it's mostly just people having small talk. When a murder or catharsis occurs, the pace picks up. When a piece of literature or filmography has bad pacing, the transition between slow and fast pacing is all but nonexistent. When it has good pacing, the big events are molded into the story appropriately and naturally. Hope this helped.
Sitting, A gerund phrase is a verbal ending in -ing that functions as a noun.
I know the answer is NOT C "During one great period of immigration--between 1891 and 1920--our nation received some 18 million men, women and children from other nations. The hard work of these immigrants helped make our economy the largest in the world."
The square root of 10 is irrational. It’s a non-perfect square.