19) ____ mainly for the invention of the telephone, Alexander Graham Bell devoted his life to helping the deaf.　　 A) He is remembered B) While being remembered　 　C) To be remembered D) Though remembered

熱心網友

選BWhile有轉折，對比的含義。兩個句子主語一致，第一個句子可省略。愛迪生是被記得做什么事，所以用being remembered。A為完整的句子，不需要用逗號隔開。

熱心網友

B