It's probably better to post in a different part of the forum if there are any specific queries about areas your DD is struggling with. There's a post 11+ part of the forum, which I've found useful for Year 7 queries here:viewforum.php?f=39
My own DD has just finished Year 7 at a Grammar, haven't even bothered to look into books for Year 8
but then again I didn't bother with oldest DS either (about to start Year 10 and I've done zero at home to support him since starting secondary). Starting to feel guilty now, maybe I should do more!