大家发现妙妙弟弟的卧室规划不合理，便一起重新整理。阅读弟弟对整理后房间的介绍，完成以下任务。This is my room. There is a blue bed in the room. There are some books, a plate and a clock on it. On the plate, there is some cake. On the desk, there is a box of crayons. Near the window, there are some plants. It is very clean now. I like it very much!
通过阅读妙妙弟弟的介绍，补全There be 句型的规则吧！
（1）当be动词后面的名词是{#blank#}1{#/blank#}或{#blank#}2{#/blank#}时, be动词要用is。
（2）当be动词后面的名词是可数名词复数时，be动词要用{#blank#}3{#/blank#}。
（3）当出现两个及以上的主语时，be 的形式要遵循{#blank#}4{#/blank#}原则。当动词be后所接的名词是可数名词单数或不可数名词时，be动词用{#blank#}5{#/blank#}；当其后所接的名词是可数名词复数时，be动词用{#blank#}6{#/blank#}。
