我正坐在沙发上看电视 是说 i am watching tv on the sofa ． 我想问sit 为什么不用加

我正坐在沙发上看电视 是说 i am watching tv on the sofa ． 我想问sit 为什么不用加 我坐在沙发上是 I sit in the sofa.还是 I sit on the sofa. 那个坐在沙发上的男人是谁?who is the man sitting on the sofa?为什么用sit而不是si 适当形式填空说明为什么1my brother is(sit)on the sofa and watching tv The cat is lying on the sofa while I am watching TV at home. I like sitting on the sofa and watching TV. 是sit in the sofa 还是sit on the sofa? i am sitting the chair? 我正坐在椅子上? 呆在沙发上是on the sofa还是 in the sofa? 坐在沙发上,用in the couch还是on the couch,想强调人物窝在沙发里看电视,是个couch pota 英语翻译：i like watching TV on the sofa more than doing exercise i like watching TV on the sofa more than doing exercise.