When more and more women join the WHO it takes on a new look—as news reports put .A. itB.

问题补充：

When more and more women join the WHO, it takes on a new look—as news reports put .

A. it

B. that

C. so

D. one

答案：

(答案→)A. it

B. that

C. so

D. one

解析：assb./sthputsit正如…所说的那样,是固定用法。类似的结构还有:make/helpit成功；worthit值得；footit步行. 故A正确。