1. Is your sister older _______ younger than my sister?A. nor B. and C. soD. or2. I ate 6 slices of pizza yesterday, _______John didn’t eat any.A. or B. for C. butD. so3. Your niece and I went out for lunch, _______ we both ordered fish.A. and B. or C. norD. but 8. Câu ghép và câu phức