问题补充：
---- Hello, John. I haven’t seen you since we were at university.
---- . It’s been a long time.
A. That’s all right.
B. All right.
C. That’s right.
D. Right enough.
答案：
A. That’s all right.
B. All right.
(答案→)C. That’s right.
D. Right enough.
解析：考查交际用语。That’s right. 你说的对，没错； That’s all right. 不要紧，没关系，没什么； All right. 行，好吧； Right enough 当然，无疑；句意：—你好，John，自从大学以后我就没有见过你。—说的对。是很长时间没有看见你了。根据句意说明C正确。
