单选题 Don' t A make Helen' s remarks too B seriously . She is so C upset that I don' t think she really knows D what she is saying .
【正确答案】 B
【答案解析】解析：应改为serious。seriously：认真地，严重地，严肃地，为副词；serious：严肃的，严重的，为形容词。make意为“使得”，其后应用形容词serious作宾补。