I have one older sister and one older brother. My brother and sister are ??. My grandparents are our ??. 

我有一个姐姐和一个哥哥 = I have an older brother and older sister. 
我的哥哥和姐姐很喜欢我 = My older brother and older sister really like me.
我的爷爷奶奶很喜欢我们 = My grandfather and grandmother like us alot. 
我哥哥在看书 = My older brother is reading a book.
我姐姐和我在看电视 = My older sister and I are watching TV. 
我和姐姐想吃翘课了 = Older sister and I want to eat chocolate. 
我哥哥不喜欢吃翘课了  巧克力= My older brother does not want to eat chocolate. 
他想喝可乐 = He/she wants to drink coke.
你有哥哥姐姐吗 = Do you have an older brother and sister?
他们喜欢你吗？= Do he/she like you? 

I have one older sister and one older brother. my sister and brother really like me.  My paternal Grandfather and grandmother really like us. my brother is reading a book.  My sister and I are watching television. My sister and I like eating chocolate. My brother does not like to eat chocolate. he likes to drink cola. Do you have an older brother or older sister? Do they like you?

I have an older brother and older sister. My older brother and older sister like me alot. My grandfather and grandmother like us alot. My older brother is reading. My older sister and I are watching TV. My Older sister and I want to eat chocolate. My older brother does not want to eat chocolate. He wants to drink coke. Do you have an older brother and sister? Do they like you?

correct 

I have one older sister and one older brother. My older brother and sister like me alot. our grandma and gradpa also like us all alot. My oldest brother is reading a book. My older sister and I watch TV. My oldest sister wants to eat chocolate. my brother doesnt want to eat chocholate he wants to drink coke. Do you have older sisters or brothers, do they like you?

correct 

I have an older sister and older brother. My brother and sister like me. My grandpa and grandpa like us. My brother is reading a book. My sister and I are watching TV. My sister and I want to eat chocolate. My brother doesn't want to eat chocolate. He wants to drink cola. Do you have a older brother and sister? Do they like you?

正确！

I have an older sister and older brother. My older brother and sister really like me. My grandpa and grandma really like us. My brother is reading a book. My sister and I are watching TV. My sister and I want to eat chocolate. My brother doesn't want to eat chocolate, he wants to drink coke. Do you have an older brother or sister? Do they like you?

correct

I have one older sister and one older brother. My older brother and sister really like me. Our grandmother really likes us. My older brother is reading a book. My older sister and I are watching tv. My older sister and I would like to eat chocolate. My older brother would not. He would like to drink cola. Do you have an older brother or sister? Do they like you?

I have one older sister and one older brother. My older brother and sister like me very much. My grandmother and grandmother like us very much. My brother reads a book. My sister and I watch television. My sister and I want to eat chocolate. My brother does not want to eat chocolate. He wants to drink coke. Do you have a brother or sister? Do they like you?

I have an older sister and an older brother. My older sister and older brother really like me. Our grandparents really like us. My older brother is reading a book, and my older sister and I are watching TV. My older sister and I would like to eat chocolate. My older brother doesn't want to eat chocolate, he wants to drink Cola. Do you have older sister and older brother? Do they like you? 

I have 1 older sister and 1 older brother. My brother and sister like me a lot. My grandfather and grandmother likes us a lot. My brother reads books, my sister and I watch TV. Me and my sister want to eat chocolate. My brother does not want to eat chocolate. He wants to drink Coca-Cola. Do you have brothers and sisters? Do they like you?

I have an older sister and an older brother. My older brother and older sister both like me. Both my grandma and grandad both like us. My older brother is watching TV (book), my older sister and I are watching TV. My sister and I both want to eat chocolate. My brother does not want to eat.  He likes to drink Coca Cola. Do you have an older brother and sister? Do they like you?

I have one sister and one brother. My brother and sister like me. My gandmother and grandfather love us. My brother lives with me and my sister.

I have an older sister and older brother.  They both really like me.  My grandpa and grandma both really like us.  My older brother is reading a book.  My older sister is watching TV with me.  Me and my older sister like eating chocolate.  My older brother doesn't like eating chocolate, he likes drinking Coke.  Do you have an older brother and sister? （仔细听，说话的人是说“like”还是“want”）  Do they like you?

>Me and my older sister want to eat chocolate.  My older brother doesn't want to eat chocolate, he wants to drink Coke.