活动记录中的静态链和动态链分别起什么作用？

A. Yes, I won't be going home until Friday.
B. No. I have a class until one o’clock, and after that I'm going to spend a couple of hours at the library before going home.
C. Yes. But I am afraid I have to stay for a few hours in the city library before going home, home directly.
D. Yes. If I were you, I wouldn' t go

A
B
C
D