3rd one is on the tip of my tongue...I will be kicking myself as soon as someone else posts the name. Last one is something in Melastomataceae--I think I grew this one a few years ago but once again the name escapes me for the moment.
nel5397 - I think you're correct about #1. At first I thought it was a Jasminum but couldn't reconcile the foliage and flowers. But Rosa fortuniana is one of the "roses that don't look quite like a rose" eg Rosa banksiae.