—By the way，have you moved into the new house?

—Not yet．The walls ________．

A．were painted

B．are being painted

C．are painted

D．are painting

（）就是企业的大顾客，他们占企业顾客数量的20%，却给企业带来80%甚至更多的利润。

A.重要顾客

B.关键顾客

C.一般顾客

D.无关顾客