it还是there

下面一题，需要填it或there：

_______ was a picture on the wall. _______ was an abstract painting.

答案是：第一空填There，第二空填It。请问，可以反过来填吗？

_____ was a picture on the wall. _______ was an abstract painting.
题意是：墙上有一幅画。它是一幅抽象画。所以答案是：第一空填There，第二空填It。不能反过来填。由于There be 结构表示有（某物或人）。假如反过来填，句意不通。