It's so nice to hear your voice.和 It's necessary for you to lock the car when you do not use it.的主语、谓语是哪些?
问题描述：
It's so nice to hear your voice.
和 It's necessary for you to lock the car when you do not use it.的主语、谓语是哪些?
答
形式主语是it，谓语动词是is，nice/necessary做表语。to hear your voice/to lock the car when you do not use it是不定式做实际主语。
答
这两个句子都是"主系表"句型.都是用it 作形式主语,不定式作真正的主语.It's necessary for you to lock the car when you do not use it.中it 作形式主语,is 作连系动词,necessary作表语,for you to lock the car 作...