题目内容：

What do you think ___ we should do with the polluted water.A.that B./ C.how D.which

优质解答

B 这里面不要被题干中的do you think 所迷惑.它只是一个插入语.你把它抽出去并不影响结构.所以变成what should we do with the polluted water?这样一个简单的疑问句.这样答案就很明显了.其他都是迷惑项.