【题目】No one knows the age of the old man wandering in the street all day, but judging from his appearance, he is in his sixties.
A. approximately B. exactly
C. actually D. gradually
在线课程【答案】A
【解析】句意：没有人确切的知道徘徊在街道上的这个老人的年龄，但是从他的外表判断，他大约有60几岁了。A. approximately大约；B. exactly 确切地；C. actually实际地；D. gradually逐渐地；故答案为A。