On the __________ first day, our teacher told us that it was vital that we __________ notes in English class.

A．very; take down

B．very; took down

C．just; take down

D．just; took down

物业服务费应当按照业主拥有物业的（）来计算。

A.建筑面积

B.使用面积

C.实用面积

D.结构面积