Combining sentences with and, but, and because

I couldn't go to Homecoming because I was grounded.

• add a comma after Homecoming

• add a comma after because

• No comma needed

Josh is a cat lover but I don't really like them.

• add a comma after but

• add a comma after lover

• no comma needed

Caleb was running in athletics and he tripped and sprained his ankle.

• add a comma after athletics

• add a comma after tripped

• add a comma after athletics and tripped

• no comma needed

Because my character lives in a world with elves and unicorns I cannot relate to her.

• adda comma after world

• add a comma after unicorns

• no comma needed

How are these two clauses best combined into one sentence?

I was late to class. Because my mom overslept.

• I was late to class because my mom overslept.

• I was late to class, because my mom overslept.

• No change needed

Sometimes I just want to go home and sleep.

• add a comma after home

• add a comma after and

• no comma needed

Which of the following sentences are NOT punctuated correctly? (There is more than one!)

• I want to go to Hawaii but I am afraid to fly.

• I want to go to Hawaii but can't.

• I cannot go to Hawaii because I don't have money.

• I want to go to Hawaii, because the pictures look so beautiful.

What is the best way to combine the following clauses?

Lena does not get along with her sister. And I fight with my brother all the time.

• Lena does not get along with her sister and I fight with my brother all the time.

• Lena does not get along with her sister, and I fight with my brother all the time.

• Lena does not get along with her sister and, I fight with my brother all the time.

• no change needed

We went to the fair and rode all the rides.

• We went to the fair, and rode all the rides.

• We went to the fair and, rode all the rides.

• no change needed

I want to do better in math but it is too hard and I cannot seem to concentrate.

• I want to do better in math, but it is too hard and I cannot seem to concentrate.

• I want to do better in math, but it is too hard, and I cannot seem to concentrate.

• I want to do better in math but it is too hard, and I cannot seem to concentrate.

• no change