单选题 He asked her to go to a concert with him but she turned his invitation______politely.
【正确答案】 A
【答案解析】解析：句意：他要求她与他一起去听音乐会，但她礼貌地拒绝了他的邀请。turn down拒绝，调低。turn out证明。turn away转过去；驱逐。turn up出现，发生。