I have a brother.

(a)  

I have no siblings.

(a)  

My mom's name is Debra.

(a)  

My Cousin's name is Mike.

(a)  

My grandpa is 80 years old.

(a)  

My grandma is 70 years old.

(a)  

I have two sisters.

(a)  

I have three brothers.

(a)  

I have four cousins.

(a)