(1) Xiaohua's home is in the east of the school. The library is in the north of the school. (3) Xiaoming's home is in the west of the library. (4) The school is in the east of Xiaoming's home and in the south of the library. (5) Xiaoli's home is in the northeast of the school, marked with △ as follows: So the answer is: (1) East (2).