I have taken the training of IELTS in New Channel to paper IELTS examination from October 15 to December 11.And I decide to attend the exam in February.应该是take part in....for the paper.因为节目的目的是为雅思考试，所以是for.Contracting with IELTS for a period of time , I have a certainly understanding of this exam ,这句话前应该加个after..certain因为是做后面...
