The had seen all of ______ friends except Aliza and _____ at the restaurant.
The had seen all of ______ friends except Aliza and _____ at the restaurant.
Explanation
- "Their" is the correct possessive pronoun referring to "friends."
- "Me" is correct because it is the object of the preposition "except."
Correct sentence:
"They had seen all of their friends except Aliza and me at the restaurant."