C 解析:表示謝意的用語通常為Thank you(very much)./Thanks a lot./Thanks(you)for…/It's very kind of you.應(yīng)答通常為Not at all./That's OK./That's all right./You're welcome./It's a pleasure. 方法提煉:對容易混淆的用語要記清其基本意義。All right.(可以,行)為答應(yīng)對方要求的應(yīng)答語;That's right.(對)為贊成對方觀點的應(yīng)答語。