题干
— does this smart phone belong to?
—Let me see．Oh，it's ．
A：Whose；her
B：Whose；hers
C：Who；her
D：Who；hers
答案(点此获取答案解析）
D
— does this smart phone belong to?
—Let me see．Oh，it's ．
A：Whose；her
B：Whose；hers
C：Who；her
D：Who；hers
CH3COO－＋H+