The guests were in the front rows to the president attentively.A. seating;listenedB. sea

问题补充：

The guests were in the front rows to the president attentively.

A. seating;listened

B. seating;listening

C. seated;listened

D. seated;listening

答案：

A. seating;listened

B. seating;listening

C. seated;listened

(答案→)D. seated;listening

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