singing/ I'm/ brother/ not/ good/ as/ my/ at/ as/. A. I'm not as good at singing as my brother. B. I'm not as good as singing at my brother. C. I'm as good at singing as not my brother. D. I'Đoạn văn12/60singing/ I'm/ brother/ not/ good/ as/ my/ at/ as/.I'm not as good at singing as my brother.I'm not as good as singing at my brother.I'm as good at singing as not my brother.I'm not as good as at singing my brother.Giải thíchChọn A