But Health Minister Stephen Robertson,_ department devised the kit,said youth ...A.of which B.whose C.which D.his为什么不能选B?错了,为什么不能选A,

问题描述:

But Health Minister Stephen Robertson,_ department devised the kit,said youth ...
A.of which B.whose C.which D.his
为什么不能选B?
错了,为什么不能选A,