就近原则,帮我说一下哪个是句子的主语

题目

就近原则,帮我说一下哪个是句子的主语
There is a lamp,a computer and some books on the desk.
On the second floor,there are two bedrooms and small study.

答案

a lamp,a computer and some books
two bedrooms and small study
（there be 句型中最近的那个词决定is还是are,所以上句中a lamp决定了is,下句中two bedrooms决定了are )