Command/Control + Shift on the text to change or delete it.
The pink highlight means you don't have the correct font installed on your sytem.
alt+shift doesn't work. i can't select them at all. its like i'm clicking in an empty space.
Sorry. I got it now with the control. Thank you very much Derek!!!!
If you're on a Mac select Command + Shift. One item at a time.
They are likely items on a master page. As Derek said, Command/Control + Shift (not Alt-Shift) will release them on your document page and make them editable. But because they are master page items (designed to remain the same on all pages that the master is applied to), then you're better off making your changes on the master page itself. Go to the Pages palette (Window menu>Pages) and look above the dividing line for the masters.