We have been seeing good cooperation between tourism industries across the Taiwan Straits shape since July, 2008.
A. taken
B. to take
C. taking
D. being taken
网友回答
A. taken
B. to take
(答案→)C. taking
D. being taken
解析：考查分词用法。本题考查的分词做宾语补足语的用法，see sth/sb doing 看见某事正在发生；句意：自从2008年7月以来，我们一直可以见证海峡两岸的旅游业的显著发展。Doing表示主动和正在进行。故C正确。