Which statement about /r/ is wrong?（ ） A.The tip of the tongue approaches the alveolar area. B.The tongue is slightly curled. C.The tongue is pressed against the upper gum ridge. D.There should be a slight lip-rounding.

Which statement about /r/ is wrong?（ ） A.The tip of the tongue approaches the alveolar area. B.The tongue is slightly curled. C.The tongue is pressed against the upper gum ridge. D.There should be a slight lip-rounding.

正确答案：C