複選題40. 請選出正確的句子：不管他多努力，他還是無法準時完成這項艱難的工作。 (A) No matter how hard did he try, he still couldn’t finish the difficult task on time. (B) No matter he tried hard, he still couldn’t finish the difficult task on time. (C) No matter how hard he tried, he still couldn’t finish the difficult task on time. (D) However hard he tried, he still failed to complete the challenging task on time. (E) Whether he tried hard, he still could complete the challenging work on time.