__________ it be fine this Sunday, we would pay a visit to the art exhibition．
A.WillB.WouldC.ShouldD.Was在线课程C
解析：
这是一道倒装虚拟语气题目，与将来情况有关，条件从句相当于if it should be fine this Sunday。如果条件从句中包含有一个助动词，情态动词，动词be或have，有时把if省略掉，把助动词、情态动词、be或have放在主语前面。