be动词的用法（a）IamMillie.(b)HeisAndy./SheisMillie./ItisLilyamp;#39;sdogSpotty.(c)We/Youareclassmates./Theyaremynewfriends.(d)Andyismycousin./MillieandJillaregoodfriends.在(a)、(b)、(c)三组例句中,主语都

问题：be动词的用法（a）IamMillie.(b)HeisAndy./SheisMillie./ItisLilyamp;#39;sdogSpotty.(c)We/Youareclassmates./Theyaremynewfriends.(d)Andyismycousin./MillieandJillaregoodfriends.在(a)、(b)、(c)三组例句中,主语都

答案：↓↓↓

高铭学的回答：

网友采纳　　在(a)、(b)、(c)三组例句中,主语都是_人称代词_,谓语都是_be动词_.　　在(d)组例句中,主语是_Andy（人名）_.