I know you love the wonderful world of prepositions. So do I. Well, I’ve found these two wonderful presentations about the prepositions we have to deal with and I would like to share them with you. They appear in the web Slideshare, a place where you can find all kinds of slideshows or presentations about different topics. You can also upload your own presentations and share them with the world. I was going to preper a presentation for you, but then I remembered this wonderful site and found them ready for me.
After watching the presentations, you can also practice with some online activities like the ones you can find in the site English as a Second Language, where you can also find great explanations. Here, in the site Eslpartyland you also have more online activities on prepositions.
All this information, apart from you can find in your grammar book and in your coursebook, should be enough for you not to have problems with these prepositions anymore. Bye!