—Your new dress looks very nice! —A. Yes it is so niceB. Where? Where? C. Thank you.

问题补充：

—Your new dress looks very nice! —

A. Yes, it is so niceB. Where? Where? C. Thank you.

答案：

解析：句意：——你的新连衣裙看起来非常好看！谢谢你。A. Yes, it is so nice. 是的，它是如此好看；B. Where? Where? 哪里？哪里？ C. Thank you. 谢谢你。在英语中，当别人表扬你或称赞你的物品。你应该说Thank you. 故选C。