A-A+
While (remembering) mainly (for) the invention
问题详情
While (remembering) mainly (for) the invention of the telephone, Alexander Graham Bell devoted his life (to) (helping the deaf).
A．remembering
B．for
C．to
D．helping the deaf
参考答案
正确答案：A
解析：应改为remembered。根据主句主语Alexander Graham Bell和re-member一词的逻辑关系，应该是被动关系，故改为过去分词remembered。
