第3题: [单项选择]We should be able to do the job for you quickly, ______ you give us all the necessary information. A. provided that B. or else C. as if D. in case 参考答案:A 答案解析:provided that的意思是“假如,假设”,符合本题的题意。or else意为“否则”,经常可以替换作otherwise或or if not。as if意为“好像”,其后的从句通常用虚拟语气。i