28. According to the passage, what does the word “them” refer to? (A) Sides. (B) Hands. (C) Heels. (D) Fingertips.

29. According to the passage, which of the following statements is true? (A) A woman is required to bow to a man. (B) On a formal occasion, a bow should be about 30 degrees. (C) When saying good-bye, all parties have to bow to each other for three seconds and once. (D) While bowing, men usually put their hands on both sides with their hands touching.