Andy has ____ for five years. Five years ____ a long time.[ ]

A. come back home, is

B. come back home, are

C. been at home, is

D. been at home, are

炎热地区住宅隔热处理常用的方法有几种，下列哪一项不属于其中( )。

A．减少东西向墙面

B．提高墙体、屋顶的隔热性

C．用绿化隔热降温

D．加大进深，缩短外墙长度