Hi dear Mohammad,
Please note the concept of the persian sentence.
This is the attraction which is added not the dog itself, you see
And abot below sentences, I should say both are correct
1) The store will open at 7:00
2) The store will be opened at 7:00
The first one is an active sentence and it is a fact or a regular habit.
The second one is the passive sence and its correct too.