was invited to a children's party

问题描述:

was invited to a children's party
怎样看出它是被动语态
这句话变成主动语态是怎么写

这句话翻译为:被邀请去参加孩子的派对
被动时态有好几种,句中was invited,是一般的过去时态.was/were+动词的过去分词形式
发出邀请是主动的语态,一般时就好