If it were not for the fact that she ______ sing, I would invite her to the party.
【正确答案】 C
【答案解析】此句虽然是虚拟语气，但fact后的同位语从句(她不会唱歌)却是客观事实，因此填can't，表示她不具备这个能力，不会唱歌，所以没有被邀请，答案为C。