(2010·天津蓟县下营中学高三第一次模拟) 12. Taking pictures of snow is _____ Ken has spent much of the past years doing.
A. That B. which C. what D. how
(2010·天津蓟县下营中学高三第一次模拟) 12. Taking pictures of snow is _____ Ken has spent much of the past years doing.
A. That B. which C. what D. how
C