完形填空

This is Alice White . She is from Canada . She is twelve  1  old . She is  2 Class Eight , Grade Seven . She has big eyes and long hair .  3 mother is  4 English teacher . She has a sister . She is a student , 5  . They are in  the same  school but in different classes.

小题1:A.years             B .month              C .year       

小题2:A. in               B . from                C . at         

小题3:A. He               B. His                 C .  Her

小题4:A. an              B . a                    C . the           

小题5:A. to             B . and                 C.  too      

对复分解反应X+3KOH=3Y+Al(OH)₃↓的分析，错误的是

A．Y中一定含有K元素

B．Y可能是KNO₃

C．X可能是Al₂(SO₄)₃

D．X中含有三价元素