The reason for his absence from school was ____ he fell ill.

A．because

B．why

C．what

D．that

物业租赁所面向的目标市场群体，主要由（）决定。

A.该物业所处地理位置

B.该物业所处子市场的供求关系

C.该物业类型

D.该物业市场营销状况