Hello! Can you tell me if I corrected these sentences properly? My answers are below each sentence I'm supposed to punctuate.

Instructions/Hint: Semi-colons

1. The baby smelled like lavender, and she just had a bath.

The baby smelled like lavender; she just had a bath.

2. She didn't want to go to the party, so she said she had to do homework.

She didn't want to go to the party; she said she had to do homework.

3. He was looking for his car keys, but he found his guitar string.

He was looking for his car keys; he found his guitar string.

(I should remove the conjunctions if I’m meant to use a semi-colon right?)

Instructions/Hint: To use a comma or not?

4. I had a really bad day. My car broke down my cat died and I forgot about the pop quiz in Math.

I had a really bad day. My car broke down, my cat died, and I forgot about the pop quiz in Math.

5. She said I could eat the peach plum or strawberry pie.

She said I could eat the peach, plum, or strawberry pie.

6. Aunt Jessica is the sweetest most wonderful person I know.

Aunt Jessica is the sweetest, most wonderful person I know.

Instructions/Hint: What's missing?

7. I love do it yourself projects

I love do-it-yourself projects.

8. Did you see this fourteenth century artifact

Did you see this fourteenth-century artifact?

9. I want three things in life chocolate a comfy chair and a good book

I want three things in life: chocolate, a comfy chair, and a good book.

10. My grandma is ninety seven years old

My grandma is ninety-seven years old.

11 . I love blue purple and white the names Adrienne Micah and Solaris the countries Russia Egypt and France but not the foods peanut butter oreos and eggplant

I love blue, purple, and white; the names Adrienne, Micah, and Solaris; the countries Russia, Egypt, and France; but not the foods peanut butter, Oreos, and eggplant.

(you capitalize ‘oreos’ because it’s a brand, right?)

Instructions: Stop this run-on! Watch for punctuation and capitalization as well!

12. I was so excited because I was able to go to the fair where there were all kinds of people and events and neat games to play and I was so happy because I got to go with my dad and brother who I haven't seen in the longest time did I mention that we were able to eat cake and dad bought me a balloon?

I was so excited because I was able to go to the fair where there were all kinds of people, events and neat games to play. I was so happy because I got to go with my dad and brother who I haven't seen in the longest time; did I mention that we were able to eat cake, and dad bought me a balloon?

13. I wish that I lived in the middle ages because then I could be a knight and fight with a sword or maybe I could be a queen and rule a kingdom Ive always wanted to live in a castle

I wish that I lived in the Middle Ages, because then I could be a knight and fight with a sword, or maybe I could be a queen and rule a kingdom. I've always wanted to live in a castle!

English is my third language so thank you in advance for the help! :)

5 answers

I don't think #3 needed correcting. It reads better with the comma and conjunction in there.

#12 has additional errors, and there should be 3 separate sentences here.

#13 should have 3 separate sentences.
12. I was so excited, because I was able to go to the fair where there were all kinds of people, events, and neat games to play. I was so happy because I got to go with my dad and brother who I haven't seen in the longest time. Did I mention that we were able to eat cake, and dad bought me a balloon?

13.I wish that I lived in the Middle Ages, because then I could be a knight and fight with a sword. Maybe I could be a queen and rule a kingdom. I've always wanted to live in a castle!

Are these correct now?
Almost!

In #12, "my dad and brother who I haven't seen" -- the word pronoun should be "whom" not "who."

#13 is fine!
Thank you so much! :) <3
You're very welcome!