He can’t hear because of his ______ . A. deaf B. deafness C. deafen D. deafenedĐoạn văn8/40Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions. He can’t hear because of his ______ . deafdeafnessdeafendeafenedGiải thíchChọn đáp án B