例句:They have talked to him since morning.这句话对吗?
要改变成:They have been talking to him since morning.吗?
非终结延续性的动词(完成体)与持续时间状语连用能表示一个动作从过去开始一只延续到说话时刻吗?是表示事件意义吗?与完成进行体可以互换吗?
你的两个句子都是对的,且意思相同:
正:They have talked to him since morning.
正:They have been talking to him since morning.
同意蒋老师的解答。我无意中在章振邦教授的新编英语语法中找到了出处和原句: