分类：教育/科学-学习帮助
问题：1道英语选择题Thegirsinourclassare()iny 
The girs in our class are ( )in your class. A more active in singing than  B more active in singing than the C as active in singing as  D not so active in singing as they 
回答：选B 
   因为than后面要有一个名词来充当前面的成分　the girls 所以要用those 来代替，如果遇到不可数名词要用that来代替