find the mistake
 

find the mistake
we went to the cinema to spend the time until the train arrived
- I was alone in the house since all my parents were at work

شكرااااااااا

:The First sentence
We went to the cinema to pass the time untill the train arrived
: The second one

.
I was alone in the hoouse since my parents were at work
As the phrase my parents refers to mother and father so we do not have to add all as we only have just a father and a mother