-Hi! Long time no see.---Yes. It’s almost three years we met last time.A. whileB. befor

问题补充：

---Hi! Long time no see.

---Yes. It’s almost three years we met last time.

A. while

B. before

C. since

D. until

答案：

A. while

B. before

(答案→)C. since

D. until

解析：根据题干，本句的意思是“自从上次见面，几乎有三年时间了。”“自从”是since。而while“当……时候”，before“在……之前”，until“直到……才”。所以本题选C。