When I was working for this company, "I used to drive" to the other side of the city, and it was very inconvenient.
This is the correct answer. The phrase "used to" indicates a past habitual action. In this case, it means that driving to the other side of the city was a regular activity for the person. Additionally, the phrase "was very inconvenient" suggests that the person found it troublesome or difficult to travel to the other side of the city.
The other options are not suitable in this context.
- "I would drive" implies a conditional action, which doesn't fit the sentence.
- "I was driving" suggests that the person was in the process of driving at a specific time, which doesn't match the sentence structure.
- "I drove" implies a one-time or completed action, rather than a regular habit.