Trắc nghiệm: A severe illness when she was just nineteen months old deprived the well–known writer and lecturer Helen Keller from both her sight and hearing.,A severe illness when she was just nineteen months old deprived the well- known writer and lecturer Helen Keller from both her sight and hearing,A severe illness when she was just nineteen months old deprived the well- known writer and lecturer Helen Keller from both her sight and hearing.