hi dear july i had problem with (( the )) like you until my english teacher who lived years in us answerde my question he said when you use (( the )) before something it means a unic object that there is just one for example: 1. dude give me a book ( it means give me one book and that is not important be math or science) 2. dude give me the book ( now is diffrent and guy want a special book that there is just one in the world)

In sentences like "I like this one the best" or "I think that one fits me the most" you can use "most" and "best" interchangeably, but in most cases you can't. In the sentence "He is the most handsome", "most" intensifies the adjective "handsome." No one is more handsome than him. Most doesn't necessarily have to be positive. You could also say "he is the most hideous." The word "best" cannot be used in either sentence. "Best" is an adjective, and it essentially means "the most good". "Best" modifies nouns. "He is the best athlete". "She is my best friend." You can't use the word" most" in either sentences. Both "the most" and "the best" can be used as adverbs, too, as in the sentences you provided. In most cases they mean different things though; "She runs the most" means she runs more often than the others. "She runs the best" means she is better at running than te others.

They are not interchangeable. best/most = adjective (answers the questions "Which one(s)?") He's my best friend. Most people like him when they meet him. the best = adverb (answers the question "How?") the most = adverb (answers the question "To what degree?") -I think it fits me the best. (fits me how?) -I like this one the most. (like it to what degree?)