下列有关物质的分类或归类不正确的是

①混合物：石炭酸、福尔马林、水玻璃、水银  ②化合物：CaCl₂、烧碱、苯乙烯、HD

③电解质：明矾、胆矾、冰醋酸、硫酸钡      ④纯净物：干冰、冰水混合物、浓硫酸、水晶

⑤同位素：C、C、C                      ⑥同系物：CH₂O₂、C₂H₄O₂、C₃H₆O₂、C₄H₈O₂

A.①②④⑥         B.①②④⑤           C.①③④⑤          D.②④⑤⑥

—When I was young, I liked playing with toy animals.

—______.  [ ]

A. So I was

B. So was I

C. So did I

D. So I did