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

热心网友

选BWhile有转折，对比的含义。两个句子主语一致，第一个句子可省略。爱迪生是被记得做什么事，所以用being remembered。A为完整的句子，不需要用逗号隔开。

热心网友

B