题目内容：

__tomorrow,he would be able to see the opening ceremony.A:were he to come B:wold he come.为什么选A

优质解答

表示将来时的虚拟语气条件句.
我把它还原一下.
Were he to come tomorrwo,he would be able to see.
If he were to come tomorrwo,he would be able to see.
be to的结构可以表示将来时
例句：i am to do the laundry tomorrow.我明天再洗这些衣物.