Milk quickly turns sour -it's in a fridge .A until.B since C

Milk quickly turns sour ＿it's in a fridge .A until.B since C as D unless
-Wang jie was a volunteer in the 2008 olympics.-＿ A so Tom was.B so was Tom C so did Tom D so Tom did.what ＿you do if you ＿5 million yuan?A will ,will win.B would,won.C would,win.D will,won
帮我看看选什么?为什么选这个理由,