Translation of Radioaktivität

I expect it towards the weekend. Will you by any chance be in Switzerland in the week from June 15 to June 19? Most importantly, I will ask you to send me your homework so that I can correct it.
We left on time and the route included some nice beach towns along the coast, such as Tulum and Playa del Carmen. Behind me sat two very cute girls who started to talk to me about life in my country.
Sorry for bothering you with so many questions. You are going to be my first online language course. The more I trust you and your website, the more I will use it and recommend it...No problem...