①主动向老师请教,跟老师讨论、交流 ②主动跟老师打招呼
③看见老师躲着走,敬而远之 ④记住老师的名字以便有机会直呼老师名字
I can play ________ violin but I can't play ________ baseball.
计算:﹣12014﹣6÷(﹣2)×|﹣13|.