下列各组书写全都正确的一组是[ ]

A.渣滓　　唾弃　　俨然　 励精图治

B.寒喧　　渲泄　　踌蹰　 相形见绌

C.彷徨　　震撼　　急燥　 一愁莫展

D.瘦削　　怨府　　无耐　 莫明其妙

Mrs. Miller can't forget that terrible accident _____  it happened so long ago.   [ ]

A. until

B. as if

C. because

D. even though