【题目】In a TV ad, a happy housewife is polishing her table so shiny that her smiling reflection _____ on it.
A. has seen B. was seen
C. is seen D. has been seeing
在线课程【答案】C。
【解析】解析：在结果状语从句中，缺谓语，主语是smiling reflection,“笑容的映像”和谓语动词see是被动关系，要用被动，排除A，很明显，这里要用一般现在时的被动。