It's been a week since I had to make a forced landing on the planet Blismus. Fortunately, I met Turma, a very generous blismusian, who made my stay pleasant while I was on his planet. To reciprocate his cordiality, I decided to help him in his daily work. Blismus, despite its advanced technological development, depended on an organic structures in the form of gigantic mushrooms to purify the air of toxins caused by the excessive pollution due the negligence of previous generations. Turma, was a botanist, who used to go around the entire area in his strange aircraft taking care of these big mushrooms which he called, Onddos. These giant structures had been sown by aliens, many years ago, to prevent the extinction of the blismusian species. Our job was to eliminate some vermin called torakkas that used to gnaw the stems of the Onddos. Finally, I left planet Blismus and, obviously, I said goodbye to Turma, grateful for his hospitality, when my colleagues found my location.
It's hard to know when to use who or whom.
I hope I have done well
Thanks for reading!
Cheers