公共英语二级

单选题We were talking about the American tourists___we met during our trip to the Great Wall.

参考答案:C进入在线模考
本题考查定语从句的用法。what表示“所说的,所做的事情”,which强调“那一个”。whom表示“人”,其先行词是tourist,指的是人,并且在句中作宾语,所以这里只能用whom来引导从句。