what's the change of ________a general election this year?A.there being B,there to be

A.there being 原句后面是there be 句型.整个加在of 后面,介词后面,自然就应该用being,分词形式.what's the change （for there） to be a general election this year?=what's the change to be a general election...谢谢，能不能问你另外一个问题，就是chance有没有这个用法：there is a chance for to do sth有的Now there is a chance for you to show yourself up.there is no chance for her to open her English book.