was delighted at是不是被动语态ji.

was delighted at是不是被动语态ji. “I was born...”是不是被动语态 laugh at的被动语态 不及物动词是不是没有被动语态 是不是prove不需要被动语态? 主语表被动语态是不是就是被动语态 把下列句子变为被动语态 The policeman was questioning the thieves at thi He was cleaning the class room at that time （改为被动语态） 改被动语态He was doing his homework at this time yesterday . He was reading a book at this time yesterday.改为被动语态 I was washing the clothes at that time.改被动语态 He was writing a letter at 9：00 yesterday.改为被动语态