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. 
#90994
A
to mark
B
marking
C
marked
D
having marked
推荐题目
     water will make the fish in the pond       .
#93140
A
Polluting; die away
B
Being polluted; die off
C
Polluted; die out
D
Pollution; die down
With the meal ________, the mother sat down for a good rest.
#95689
A
cooked
B
cooking
C
to cook
D
to be cooked