1. My mother's mother is my father's ........ 2. My name's Paul. I'm my grandpa's.......... 3. My name is Marianne. I'm my grandpa's 4. Paul and Marianne are th

1. mother in-law
2. grandson
3. granddaughter
4. grandchildren

1. My mother's mother is my father's mother-in-law.
2. My name is Paul. I am my Granpa's grandson.
3. My name is Marianne. I am my Grandpa's granddaughter.
4. Paul and Marianne are their Grandpa and Grandma's grandchildren.