Xue Guozhang English is too old fashion English, I strongly don't recommend。 New concept(serial) is too english, you may use the first one as a exercise on oral。
In your case, I don't know if you're gonna study by your own or in a class。 If the former, you may pick some fashion book like Crazy English so on, (maybe it's on that popular nowadays in china, I have no idea) the point is you're interested in。
The later, i don't think i can give you any suggestion as i 've been too far from those classroom studying for years, but XUE English was first english book when i was in a colledge, that's useless i can say now except some certain grammar, not even all of them。
In short, pick something you are really in。 good luck! 。