Translation of verüben

In the meantime I am listening to some Spanish CDs. They are intended for the car, but no one can tell you when to listen to it, how many times and how often. Please understand that I work a lot.
The problem is that we are planning day by day and in our region (Maine, New Hampshire...) most hotels are 'by request' and not by 'space available'. I could do it but I would need to do the follow up.
That is great. Thank you for the support (and for the compliment). Recommendations by universities are always very appreciated, as universities are usually more selective about external resources.