单项选择题
A.you have to refer to a dictionary B.you have to search your mind hard for proper words C.you have to say more than necessary D.you have to compare it with a "nice person"
A.wants to tell us people are working hard B.pictures people' s fingerprints C.takes for example some terms for people' s behavior D.makes fun of others
A.their hands B.their names C.their voices D.their faces