1. He has been studying here for three years, by next summer _______________________ (他就毕业). 2. Today the small town is better _____________________ (保护自己免遭洪水危害) than it was 20 years ago. 3. You remain about the same as when you parted with us _____________________ (只是更瘦了一点). 4. He has a large collection of books, ___________________ (其中有许多用英语写的). 5. The special needs of old people housing ______________________ （已引起了房屋设计者的更多关注）. 答案：(略)