He is ________ scolding his child,which is not a good way to educate him.

A．often

B．usually

C．frequently

D．always

县级以上人民政府土地行政管理部门在收到征地申请( )天之内拟定农用地转用、补充耕地、征地、供地等方案。

A．20

B．30

C．40

D．50