A good oneis yo estaba corriendo = I was running as estaba can also be used for he/she was running or when using 3rd person singular él quiere ir a Madrid = He wants to go to Madrid -
The best place to go when I want to get away from a hectic city and enjoy the peace and quiet of nature would be: D. El campo, because in English it is the countryside, where you would mainly go camping if you are like me and want all the city noise out and enjoy a good time out in the countryside.
Could you please make it clearer as to where the blank is?
