Look over there,there's a very long,winding path up to the h

Look over there,there's a very long,winding path up to the house.为什么空格中要填lead的现在进行时?一般现在时不可以吗.网上说这句子只能有一个谓语谓语在哪啊?刚刚创的号,没多少财富值,见谅.