kitty doesn't know that__(buy)for her father

问题描述:

kitty doesn't know that__(buy)for her father

Kitty doesn't know that is bought for her father.
kitty不知道那个是买给她父亲的。
这里的that is bought for her father做宾语从句。 that是从句中的主语 is bought是被动语态, 被买

这个句子应该不完整,后面可能省略成分了.这里应该填:Kitty doesn't know that(buying)for her father.这是一个宾语从句,主语是:Kitty;谓语是doesn't know;后面有that引导的成分为宾语从句,做know的宾语,其中,buy...