What words to use depends on the overall style of the article, and the more advanced the words, the better. Appropriate is the best. English words can be divided into register, so it is correct to choose the right words in different occasions. For example, at the same time, from daily spoken language to daily writing and argumentative writing, it has a high register and can be used for daily writing, formal speech and argumentative writing. Secondly, the use of prepositions and adverbs depends on the sentence structure.