Refusing bottle

Sharon
Hey working moms! I just returned to work and my 4 month old fights the bottle all day. She took 5 ounces of my breastmilk through bottles in 10 hours yesterday! :( 
My friend recommended exclusively bottle feeding but I really enjoy breast feeding and am hoping she'll adapt to taking both.
I've also tried different bottles such as tommee tippee, avent, and now dr Browns with no change.
Anyone with a similar experience? If so did your LO eventually adapt to taking both breast and bottle or did you have to exclusively pump? 
Thanks !!