Loulan is believe by many people to have been graduallyLoulan is believe by many people _____gradually covered over by sandstorms A to beB to have beenC have beenD was

Loulan is believe by many people to have been graduallyLoulan is believe by many people _____gradually covered over by sandstorms A to beB to have beenC have beenD was it is believe by..这里用believe的这种是名词?还是要用什么 I believe that is a proper standard by which to judge people为什么不这么说：I believe that is a proper standard to judge people by. Believe in him.He is a___ to finish the job all by himself It is ____ (believe) that tea was invented by Shen Nong. No one is worthy of you to believe that only by their I never believe there is a man will love me by all life!I never believe there is a man will love me just a smile and rain is gone ,can hardly believe it ,an an angle is standing by me. It is believe that believe that god is 改错:Seeing is believe. sth is better believe Everything is will be change!But,i do not believe it!Then,How about you?By all means. 英语翻译是关于网王的:The Prince of Tennis.I believe it is a comic written by Takeshi Konomi I believe that is a proper standard by which to judge people中的by在这里是做什么用的?能不能给我举过个例子? 英语翻译We believe that it is fair to say there was a collective rush to judgement by law enforcement but also by the media. believe I love u by my heart Only Believe in you Only Stand by