为什么这里不用被动语态?I have a lot of letters to deal with.为什么不是I have a lot of letters to be dealt with?信件和我的关系不是被动的吗?

为什么这里不用被动语态?I have a lot of letters to deal with.为什么不是I have a lot of letters to be dealt with?信件和我的关系不是被动的吗? 在新概念二中的第21课有句这样的话.I have been offered a large sum of money to go away.这里为什么要用现在完成时的被动语态,而不是过去式的被动语态? i have a dog named mimi是被动语态吗 I have taken a book 改为被动语态 I have seen a bus yesterday.的被动语态 I have a meeting to prepare为什么不是被动?I have a meeting to be prepared?还有something to eat等，something不是被吃的吗？怎么不用被动形式something to be eaten呢？我问的是为什么不用“不定式的被动语态”， If I was offered the job.I think I would take it.请问这里为什么要问被动语态呢?不用可以吗?最好有例句哦, Our food will run out .为什么这里run out 不用被动语态 He has a lot of homework to do.这里为什么不用不定式的被动语态?homework不是被作吗?那么不定式的被动语态又该用在什么场合?当不定式修饰want ,have 等动词的宾语，而句子的主语是不定式的逻辑主 现在完成时被动i have been excited several days...为什么excited前面加been变成被动语态? great changes----in china since 1919A have been taken place B have taken place为什么答案是B 为什么 不用被动语态 英语现在完成时被动语态I have ____ in translating a long novel since last October.为什么填been taken? Yesterday I was told them we would have a picnic in the park这句话为什么用被动语态? Great changes__place in China since 1978.A.have been taken B.have taken C.has been taken D.took可为什么不用被动语态呢? 请问这句话为什么不用被动语态? The hunt for the puma began in a small village不用被动语态?把began换成started也不要用被动吗?还有As the evidence began to accumulate……,这里也没用被动,换成started呢?要不要 请问这句话为什么不用被动语态?The hunt for the puma began in a small village不用被动语态?把began换成started也不要用被动吗?还有As the evidence began to accumulate……,这里也没用被动,换成started呢?要不要用 most boy students have their hair____(cut) once a month填什么?若填cut,为什么不用被动语态填been cut, I was on the phone when I smelt something _____in the kitchen.A.buringB.burntC.be burnt应当选哪一个?为什么不用被动语态?急请指教