21. Customer reaction to the newly launched product was not as _____ as the company had hoped.
(A) encourage (B) encouraging
(C) encouraged (D) encouragement
22. The train was heavily crowded with commuters ____ home from their work.
(A) return (B) returning
(C) returned (D) were returning
21.새로운 제품출시에 대한 고객들의 반응은, 회사가 기대했던것만큼 encourage? 하지 않았다
수동태가 들어가야 되지 않나요 ? ed?
어떻게 해석해야 하나요? 답은 왜 b가 되는지 궁금합니다.