many a successful story has proved it.

many a successful story has proved it. it has proved or it has been proved It has been proved that qats will. 选哪个,请给出原因.A.proving B.proved C.was proved D.has been proved my little brother has a storybook .the story—book has many c [D41] It has been proved ______ eating vegetables in childho It has been proved ____taking exercise regularly does good t It has been proved ___ eating vegetables in childhood helps Alice has many story books.（否定） Ourcompany has been successful in doing business with many f It has many flower I have a story book.The book has many colourful picture .合并为