题1：The following are all correct responses to "Jack has new dictionary. "EXCEPT (    )
A. So I do.      B. So he does.      C. So he has.      D. So have I.
答案是A。
题2：The newspapers in my hometown don't have as many pages as they ____ here.
A. are              B. do                       C. have                 D. can be
答案是B。
【我想问，为什么第一题的has既可以用助动词have来替代，也可以用代动词do来替代？但是第二题的have只能用代动词do来替代呢？是因为have前的主语是人或物的关系吗？】