I agree with Adansmama that your daugher might need more toys that stimulate her imagination. Have you took a look through her toys, games and puzzles lately? She may have outgrown them and find them dull, and they may not be designed for independent, imaginative play. Does she have craft supplies that are readily available and that are age-appopriate, for instance? If all you have for crafts are pompoms and glue and paper, it's time to get her beads and string, foam crafts, etc. -- lots more. Let her choose. When she says "I'm bored" you can say, there are two craft kits right there, go crazy.
Kids don't automatically know how to entertain themselves so she needs some guidance. Does she like to read? New books. Does she like books but doesn't yet read well enough to read to herself much? Get her books on CD or one of those devices for kids that "reads" a book -- the paper book goes in but there is also a reader device. Not sure what the latest one is (and I am NOT talking about a Kindle or Nook type of device -- she might end up just playing games on those rather than reading). You say "she doesn't want to do things I like" and put reading on that list, but is she getting to choose the books you read together or do you choose? Have you taken her on a bookstore or library outing? I'd get her her own library card and make a library trip at least once a week if not more. Maybe even reward her if she gets and actually reads at least X books at her level, whatever number works for you (be sure she does read them; have her sit with each one with you and tell you what happened and what she did or didn't like about it). Just going to the library regularly could turn her on to books, if she doesn't already go. The town library willl excite her more than the school library which she probably associates with school and classes.
If she likes make-believe, find games that include make-believe -- they are out there.
When you cook or do laundry, include her and make it seem like the best thing in the world. Have fun and she will have fun; make it seem like you think it's a chore and she too will say "It's a boring chore." Let her stir things, dump stuff into mixing bowls, mix sauce into the pasta, tear up lettuce for salads, whatever. Let her fold the laundry while you sit with her and do the same; it's good talking time. I'm not talking about giving her specific weekly chores (though she should have those) as much as I am talking about involving her in your tasks so the tasks get done but she is not off staring at the TV.
I would nix the TV entirely during the week. An hour a day doesn't seem like much to an adult but for a kid it is eight hours a week (at least). She's school age and to me that means no TV at all Sunday night through Thursday night, period. It will be good for her because soon she'll have more homework and if she's used to daily TV she is going to have a tougher and tougher time giving that up when she must -- and soon, she must, because school will be more demanding.
It sounds like there is only TV or the pretend games she likes in her life right now, so broaden her horizons with books, audiobooks, age-appropriate toys and crafts, but I'd get rid of most TV. And you do not have to entertain her. You just do what you need to do and include her in it.
I hope you aren't figuring on having another child just to provide her with a playmate and sibling. If you plan to adopt because you really want that child for his or her own sake, that's great, but please don't bring another child into your family thinking "My older child needs a sibling, playmate and lifelong best friend." That wouldn't be fair to either child because siblings are not necessarily playmates or friends; they may be totally different personalities with nothing in common, and you may have a lifetime of disappointment that your kids werent' the close friends you thought they would be. If you want that second child let it be for the child's own self and not with thoughts of providing a playmate or adult friend later on.