Нужно употребить одну из степеней сравнения прилагательных. 1. this building is as that one.(modern, more modern, most modern) 2. this is the i have ever read. (boring, more boring, most boring) 3. the the day, the the night. (long, longer, longest, short,shorter, shortest)
2.the most boring
3.longer,shorter
2. This is the most boring story I have ever read.
3. The longest day, the shortest is the night.