If you type with a typewriter or printer, each letter should be capitalized, for example, a friend of mine. If you write by hand, the first letters of some important words should be capitalized. Because prepositions, conjunctions and articles are considered unimportant words, capitalization is not necessary.
Don't write the title in italics, don't underline it, and don't use quotation marks or brackets. Even if the topic is a complete sentence, you can't add a period at the end. For example, the topic, My sun has risen, can't I write about the sun? Yes? Minnias? It has gone up.
But if the title is a question, you can add a question mark, for example, what do you think of the film?
If the title is an exclamatory sentence, you can use an exclamation point. For example, what a hero he is!
Extended data
One of the biggest characteristics of English test composition questions is that there is a time limit, that is, within a limited time (generally 30 minutes), the composition questions are completed according to the requirements of the questions. Many participants either didn't finish their composition questions, or the quality was poor when they submitted their papers. Of course, there are many reasons for this situation, but one reason that cannot be ignored is that the writing time is not enough to finish the composition, or that you have not carefully thought about writing an article that meets the requirements of the topic.
English grammar is based on Germanic etymology. Although some scholars in18th century and19th century tried to apply French and ancient Latin grammar to English, they failed. Compared with all other Indo-European languages, English has less complicated inflections and almost lost all the yin-yang changes.
Basically, apart from personal pronouns, English has lost the distinction between sex and case, and it emphasizes the relatively fixed order of words, which means that English is developing in the direction of analytical language (for example, a cat's tail can be written as cat's tail instead of cat's tail, where the cat directly uses the root prototype without sticking cat's with case).
Baidu Encyclopedia-English
Baidu encyclopedia-English composition