In each group below, the three words end in the same three letters, so they look like they should rhyme, but they don't. See if you can figure out the missing letters in each group.
Example: plo___, tho___, to___ would be plough, though, tough.
- comr___, fac___, m___
- id___, s___, wher___
- p___, vac___, w___