5. He doesn't know what to do about his college choice. He's visited about twenty to see if he likes. Now, he has away for a few days to think about it.

5. He doesn't know what to do about his college choice. He's visited about twenty to see if he likes. Now, he has been away for a few days to think about it. 'Been' используется, чтобы показать, что человек уехал и временно находится в другом месте, но подразумевается его возвращение.