This has proved in some ways to be a disadvantage to our digestive apparatus and to our teeth,which are now deprived of some of the work that they were meant to do.好长、好难的句子啊!请求翻译!

why has this proved difficult the article which_______ most useful will be published in this magazineA　provedB has provedC is proved D has been proved为什么是B不是CD 英语翻译Du you find getting up in the morning so difficult that it’s painful?This might be called laziness,but Dr.Kleitman has a newexplanation.He has proved that everyone has a daily energy cycle. Why has this proved difficult? 主语是? this 是什么?difficult? This medicine has proved effective.中的proved为何是连系动词?为何effective是表语???? Do you find getting up in the morning so difficult that it's painful?This might be called laziness,but Dr.Kleitman has a new explanation.He has proved that everyone has a daily energy cycle.During the hours when you labour through your work you may s Your plan _____ to be very practical in the work.A.was proved B.proved C.was turned out D.has been proved Why has this proved difficult?请问这句话的成分,difficult修饰什么词 It has been proved ____taking exercise regularly does good to one’s health 2、Kobe Bryant has proved that he is an （）（usual) basketball player in the world This has proved in some ways to be a disadvantage to our digestive apparatus and to our teeth,which are now deprived of some of the work that they were meant to do.好长、好难的句子啊! 英语翻译第一句是：It was predicted as early as the 1700s that English whould one day be the global language and that has proved to be the case in the last few decades. the possibility of man‘s traveling to the moon has been proved.man‘s是名词所有格吗 英语翻译PrefaceThe ARPANET – the Department of Defense network that is the ancestor of today’s Internet—was built in the late sixties using a proprietary protocol suite.This first protocol proved to have shortcomings for linking with other 给出讲解Do you find it very difficult and painful to get up in the morning?This might be called laziness,but Dr.Kleitman has a new explanation.He has proved that everyone has a daily energy cycle.　　During the hours when your labor through you What’s this in ( ) This company's response to fluctuations in sale has not had the desired effect 怎么翻译? The possibility _____man's traveling to the moon has been proved.A about B for C of D over