Children can be seen playing with them a few days before Mid-Autumn night.
问题描述:
Children can be seen playing with them a few days before Mid-Autumn night.
上面的句子是什么时态?be seen playing用了什么短语吗?
答
一般现在时的韩有情态动词的被动语态
be seen 是被看见 被动语态
see sb doing sth 看见某人正在做某事