be seen to do sth 和 be seen do sth 有什么不同?举实例说明
问题描述:
be seen to do sth 和 be seen do sth 有什么不同?举实例说明
In winter when clothes are washed and hung up near a fire,steam can (be seen to rise) from them.
括号里用的词对吗?还是用be seen raising?
答
be seen to do / be seen doing是对的,be seen to do这个的意思就是说过去被看见做什么事情.已经是过去式. be seen doing这个是过去被看见正在做什么事情,这个语法是过去正在进行时,希望可以帮到你.