单项选择题
Nice to see you. I（）you for a long time.
A.haven't seen B.didn't see C.hadn't seen D.don't see
单项选择题 Nice to see you again, Mr. Smith. How are you?（）
单项选择题 －Nice to meet you. －（）
单项选择题 Nice day,（）? Yes, it is.
