问题
选择题
At least 300 million people are using QQ _______ by Ma Huateng to chat on line.[ ]
A. create
B. creates
C. creating
D. created
答案
答案：D
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At least 300 million people are using QQ _______ by Ma Huateng to chat on line.[ ]
A. create
B. creates
C. creating
D. created
答案：D