I got an A* in English Language, and I got A* for all my courseworks. I got A*,A, A for my Speaking and Listening thingies so, I'd imagine they'd probably average that out at an A. So it must be possible.
However as always if you are hoping to jump a grade in the exam, it'll mean attaining A* in the exam plus the extra marks to make up from your coursework. So if you don't like the questions, you've got no chance. But anyway, your coursework may need to be moderated and the grade boundaries for those aren't set until summer. So you could still be in with a chance!