1 so I went for a walk
2 so I couldn't get to home
3 because the work day was over
4 he got some rest
5 because it was too expensive
6 because I'm too young to live on my own
7 because I was too busy
8 because he had a nightmare
9 I use the bus or taxi
10 because I need to do my homework
11 I stayed at home and watched movies
12 because it was a sunny day
13 I had to choose the other one
14 it was his dream
15 I speak Italian
16 because the thief stole my bag
17 so we went on foot
18 because I had to go to school
19 so they divorced
20 because she's on vacation