主谓一致的一道题

问题描述:

主谓一致的一道题
In the center of the lake ____ two islands.
A.are; B is
答案一定是are;但是我想知道这一句话是倒装(主语是two islands,表语用复数are);还是就近原则(比如:There is one pen and two pencilbox on the desk.)

倒装
There are two islands in the center of the lake.