Read the following paragraph and underline the topic sentences.
Many TV commercials imply that a woman's self-esteem depends on her cleaning ability. In one commercial we see a woman terribly upset because her guests find spots on her glassware. Countless other commercials blur out the message that a woman will pass muster as a person if her kitchen floor gleams and her toilet bowl is blue. This idiocy must work, because the images of women scrubbing, mopping, waxing and smiling keep on coming over the air.
【正确答案】：Many TV commercials imply that a woman's self-esteem depends on her cleaning ability.
【题目解析】：p139
