单选题 I1. He is quite sure that it's ______ impossible for him to fulfill the task within two days.
【正确答案】 D
【答案解析】roughly意为“概略地，粗略地”；exclusively意为“专有地，排他地”；fully意为“充分地，完全地”；absolutely意为“绝对地，完全地”。所填之词修饰 impossible，所以应选absolutely。