单选题 15.  I don't think you can finish painting the fence alone in such a short time, ______?
【正确答案】 B
【答案解析】 句意“我认为你不能在那么短的时间内油漆篱笆,对吗?”本题目考察的是宾语从句的反义疑问句。I think (believe, suppose)和I don't(think, believe, suppose)引导的从句是反意从句。