Mark the letter A, B, C, or D to indicate the sentence that is closest in meaning to the sentence given in each of the following questions. 38. Her deafness dates from the accident. A. Her deafness had appeared before the accident happened. B. The accident does nothing with her deafness. C. She has been deaf without the accident. D. She has suffered deafness since the accident. 39. Acupuncture appears to work. A. Acupuncture is effective. B. Acupuncture is incurable C. Acupuncture makes illnesses worse D. Acupuncture seems to be ineffective 40. Scientists estimate about 32 million bacteria live on 2.5cm ² of our skin. A. There are about 32 million bacteria live on 2.5cm ² of our skin. B. About 32 million bacteria are estimated living on 2.5cm ² of our skin. C. About 32 million bacteria are estimated to live on 2.5cm ² of our skin. D. There are about 32 million bacteria estimating to live on 2.5cm ² of our skin. Giúp mình những câu này vs~~~~~~~~~~~~ Và giải thích chi tiết giùm mình luôn nha.