the book written by SanMao sells well.为什么用sells而不是被动语态?

the book written by SanMao sells well.为什么用sells而不是被动语态? 英语中的被动语态问：this book written by him sells good.这句中为什么written不 the book sells well sell 用法sell 有时用主动有时用被动..为什么?The book sells well.是怎么回事？ 英语被动语态语法问题The book sells well.比如这个句子,他没有被动语态的形式,那是不是所有动词家形容词 Apple sells well为什么用主动表被动 举例下其他例子 还有make被动语态还原to The pen ___well.It ___well.为什么填writes和sells,而不是被动啊? 改成被动语态1.the shop sells clothes for women The book sells well,I guess.为什么这里的I guess要放在后面? ___good,the food sells well 为什么The cake tastes good( good)and sells well(good). this book is sold well 还是this book sells well