AThe reason Bwhich he Cwas absent from school yesterday is Dthat he was ill.A．B．C．D．

We have reason to believe that he was murdered.（英译中)

Which of the following italicized parts indicates REASON？A．He succeeded by hard work.B．He

AThe harder he worked, Bthe most troubles he Chad in his early days of Dresearch.A．B．C．D．

He was rather vague about the reasons why

He was rather vague about the reasons why

He was rather vague about the reasons why