Homework-Description

1-12
I  go up the stairs to the 2nd floor and after I walk through the aisle

9-15
I go up the stairs to the 2nd floor,then walk along the aisle and enter the room

3-7
I walk through the  aisle and enter  the room

2-10
 I go up the stairs to the 2nd floor,after I walk along the aisle and enter the room 

6-11
I walk along the aisle,after  I go up the stairs to the 2nd floor and then I enter the room