单选题 No one really knows who composed this piece of music, but it had been ______ to Bach.

【正确答案】 C

【答案解析】[解析] 固定搭配。attribute常与to搭配，意为“归属，把……归于”。associate与with搭配，意为“交往，结合”；identify可以与to搭配，但与句意不符，意为“认出，识别”；consider与as搭配，意为“考虑，认为”。故答案为C。