Question

---You’ve chatted for nearly two hours．    
---Yeah. We're talking about the things_________ happened yesterday．

A．what

B．that

C．when

D．where

Answer 1

B

试题分析：句意：----你已经聊了将近两个小时了。----我们正在讨论昨天发生的事情。先行词是the things,引导词用that, which。因此，选B。