Can you help me check these sentences, please? I included the words I'm unsure of before the question marks. Thank you.

1)I find it (reading books) rather boring and sometimes a little too far away from the real world. I like reading science and history books instead.
2) I go to the gym three times a week because I do calisthenics. (is the word correct?) in a dance (?) group called ...... Four times a year we have a competition against other sports societies (??? Sports clubs)
3)I’ve got a twin sister and she attends this high school, too. My father works for Ferrero (a confectionary industry).
4)I like sports; my favourite one is football. I’m a bit shy but I like staying with my friends.
5) I’m also generous, quite kind, well-bred and silent. I like helping my mum at home: for example I tidy my room and I dry the dishes.I like Italian food but I hate beans, onion and Indian food.
6) I don’t like singing or waking up early. I don’t like playing video games.
I don’t like history and fake (?) people.

1) I find reading novels rather boring and sometimes a little too far away from the real world. I like reading science and history books instead. [If you don't include "reading novels" or other type of book, you'll contradict yourself!]

2) I go to the gym three times a week because I do calisthenics with a dance group called ...... Four times a year we have a competition against other sports clubs.

3) I have a twin sister, and she attends this high school, too. My father works for Ferrero, a candy company.

4) I like sports; my favourite one is football. I’m a bit shy, but I like being with my friends.

5) I’m also generous, quite kind, well-bred, and silent. I like helping my mum at home: For example, I tidy my room and I dry the dishes. I like Italian food, but I hate beans, onions, and Indian food.

6) I don’t like singing or waking up early. I don’t like playing video games.
I don’t like history and phony people.

Compare very carefully ...

1) The sentence seems fine. The word "reading" is correct and conveys that you find reading books boring. If you prefer science and history books, you can mention that explicitly by saying "I like reading science and history books instead."

2) The word "calisthenics" is used correctly. It refers to a form of exercise that uses body weight movements. If you're part of a dance group, you can specify the name of the group. For the phrase "Four times a year we have a competition against other sports societies," if you specifically compete against other dance groups, you can replace "sports societies" with "other dance groups." However, if you compete against various sports clubs (not just dance groups), then "sports societies" is accurate.

3) The sentence is grammatically correct. The word "confectionery" refers to the industry that produces sweets and chocolates. You can specify the company name after "works for" by saying "My father works for Ferrero, a confectionery company."

4) The sentence seems fine. You can specify the word "football" if you mean soccer. You can also mention the type of friends you like staying with, such as close friends or childhood friends.

5) The sentence is accurately describing your traits and preferences. It shows that you help your mom at home by tidying your room and drying the dishes. If you have specific examples of being kind or generous, you can include them. For example, "I'm also generous and kind. I enjoy helping people in need, such as volunteering at the local shelter." To add further clarity, you can specify after "Italian food" that you enjoy a variety of Italian dishes. As for dislikes, you can mention that you dislike beans, onions, and Indian food.

6) The sentence is grammatically correct. It specifies that you do not like singing, waking up early, playing video games, history, and fake people. However, if by "fake" you mean insincere or deceitful, you can be clearer by saying "I don't like insincere or deceitful people."