①欣闻屠呦呦获诺奖,为国自豪
②只卖国产商品,抵制外国商品
③谴责窗台行径,期盼祖国统一
④升国旗时应庄严肃穆,行注目礼
A:①②③
B:①②④
C:①③④
D:②③④
—______! The man next to me has just gone. The seat is empty now.