Oraciones (afirmativas, negativas, interrogativas) con los verbos : Forget forgive Freeze get Get up give Go Grind grow Have (Utilizando pronombres he, she, it).

that is literally a whole assignment and i'm not sure anyone in their right mind or even wrong mind is going to do an entire assignment for someone just for 100 points on a website. sorry to tell you like

- "the basic difference between keywords and subjects is that subjects (or "subject headings") have been predetermined, while keywords have not. a keyword is an easy place to start because you can use any word that seems to fit your search; this is called "natural language" searching."

the correct answer is the first one.