Very important regarding the 11th 12th marks. PLEASE HELP

<p>I have 90+ in my 9th and 10th and I expect the same in 12th. But my 11th and 12th half sem marks are absolutely terrible !!! As I had thought of going for the Jeee earlier , I didn't care squat about 11th. And during 12th half sem, I had go out for a cricket commentary gig in delhi. I was always under the impression that only 10th and 12th are counted. I'm also very confident I'll get a good score in SATs. What do I do ? :( can it be covered up in explanations ? I write fiction , I can cook up a pretty good story :p can it be covered ? Please help</p>