Fog rolling down the river is a form of figurative language known as personification. Personification occurs when a non-human object is given a human characteristic or action. In this case, fog cannot literally "roll" down the river. I mean, just imagine a person rolling down a hill like a derp-head. Fog doesn't do that, but in a figurative way, it "rolls" down the river. I hope you can understand :')
The idiom is butterflies in her stomach
Television have been around for a while now and have given us entertainment. They have shows and movies streaming all the time and they give us a range of choices to watch. They have also helped businesses by promoting products and getting people to buy them. They also help the viewer because it had other commercials about careers and what stores to go to if you need certain things. Televisions are very useful and entertaining like for example they can be used to give information about animals or diseases. Almost all their commercials help people find answers or entertainment and that is why television are important.
A. single quotation mark -- hence the saying quote-on-quote :)
