The meeting has begun I wonder how long ago .A. it beganB. did it beginC. beganD. it has

问题补充：

The meeting has begun, I wonder how long ago .

A. it began

B. did it begin

C. began

D. it has begun

答案：

(答案→)A. it began

B. did it begin

C. began

D. it has begun

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