不纯物质
除杂试剂
分离方法
A
NH4Cl溶液（FeCl3）
NaOH溶液
过滤
B
苯（苯酚）
浓溴水
C
苯（甲苯）
KMnO4（酸化），NaOH溶液
分液
D
乙酸乙酯（乙酸）
KOH溶液
We have classes from Monday to F____ .
My sister enjoys l____ to pop music.
I’m s____ for taking your pen by mistake.
The little boy cried s____ when his best friend moved to another city.
Lily has a good h____ of reading English stories every day.
如图，两个四边形关于直线l对称，∠C＝90°，试写出a，b的长度，并求出∠G的度数．
