The maker of the popular game Angry Birds announced on Tuesday that it would open its first overseas operation in Shangh
问题描述：
The maker of the popular game Angry Birds announced on Tuesday that it would open its first overseas operation in Shanghai,_____ a clear step to further enter the booming Chinese market.
A.to mark B.marking C.marked D.having marked
并翻译
答
选B.“标志着”进一步深入中国市场
A的意思是“为了标志.”不合逻辑.
C是谓语动词,造成句子里出现两套不并列的谓语,不合语法.
D的意思是“已经标志了.”不如B合理.