There are three pen pens.One is Mike's ,_is John's ,and_is Peter's. 用another the other 填.怎么填

There is a pen and three apples on the desk.为什么用is不用are? this is ------- -------- （pen).There are -------- (pen).填空 Yes,there are three There are three pen pens.One is Mike's ,_is John's ,and_is Peter's.怎么填?为什么? there are three 的中文 There are three light是什么意思 There is three dollars 还是There are three dollars There are three pen pens.One is Mike's ,_is John's ,and_is Peter's. 用another the other 填.为什么 There are three pen pens.One is Mike's ,_is John's ,and_is Peter's. 用another the other 填.怎么填 There are three pen pens.One is Mike's ,_is John's ,and_is Peter's.用another the other 填.为什么? There is a pen and a pencil 还是There are a pen and a pencil There are three monkeys.改为一般疑问句 . there are three apples on the desk? there are three books的问句是什么 there are three 什么in the city there are three birds in the There are three _____ of animals There are three ____(policeman)填空