Based on all the questions I've asked. I believe there are no mistakes in these sentences?

-J'aime la musique japonaise.
-J'ai un frere, il a vingt sept ans.
-Elle a vingt ans.
-Elle est jeune, elle est jolie. (Should I use jolie or belle?)
-Elle aime la danse, le ski et le cinema americain. (with accents)

P.S. So far the grammar in my text is about masculin and feminin, (le la; chinois, chinoise; joli, jolie) and some conjugaison. (etre, aimer...)

whats hello in greek

Salut, Mischa. You are doing well! Have you figured out how to do the accents yet?

frère; = not a run-on sentence, so just add a semicolon. vingt-sept (hyphenated)
After Elle est jeune, another semicolon to avois a run-on sentence. The adjective depends upon the "degree" of prettiness! joli/jolie = pretty and beau/belle = beautiful, handsome

When you say (with accents) I only hope you know "where."

O.K. I'll be typing a few grammar points for you.

Mme

Hello, Helen. Firt of all, when you post under French/Mischa everyone assumes it's a question on French. Be sure next time to select "Post a New Question" or it might not get answered.

You have a choice on "Hello:"
Greek (Greece, Cyprus) Geia sou

Greek (Greece, Cyprus) Geia sas

Greek (Greece, Cyprus) Geia

I figured I rather do the accents by hand. lol

Yeah, I am pretty sure where the accent goes.

I was just wondering, how many languages do you know? You seem to know quite a lot.

LOVE this question! Since I taught English, Spanish, French and studied 19 different languages, my students always asked:

How many languages do you speak?

My answer: One at a time!

Wow, that's amazing!

Based on the sentences you have provided, some corrections and explanations are as follows:

1. J'aime la musique japonaise. - This sentence is correct. It means "I like Japanese music."

2. J'ai un frère, il a vingt sept ans. - This sentence is correct. It means "I have a brother, he is twenty-seven years old."

3. Elle a vingt ans. - This sentence is correct. It means "She is twenty years old."

4. Elle est jeune, elle est jolie. (Should I use jolie or belle?) - Both "jolie" and "belle" can be used to mean "pretty" or "beautiful," but there is a slight difference in nuance. "Jolie" usually refers to a more delicate and charming beauty, whereas "belle" is a general term for overall beauty. Therefore, in this context, "jolie" would be more appropriate. So the sentence should be: "Elle est jeune, elle est jolie." Meaning "She is young, she is pretty."

5. Elle aime la danse, le ski et le cinéma américain. (with accents) - This sentence is missing some accent marks. It should be: "Elle aime la danse, le ski et le cinéma américain." This means "She likes dancing, skiing, and American cinema."

Overall, the grammar in your sentences seems accurate, focusing on masculine and feminine agreement, conjugation of verbs like "être" (to be) and "aimer" (to like/love), as well as the proper use of definite articles "le" and "la." Keep in mind that French grammar can be complex, and there are many rules to consider. Practice and exposure to the language will help you improve over time.