单选题 Ms. Sato admitted that the sales of her division have been ______ but said she expected better results next month.
A. disappointed
B. disappointing
C. disappointingly
D. disappointment

【正确答案】 B
【答案解析】选项(B)disappointing是形容词，意思为“令人失望的”，可以用来描述sales。选项(A)disappointed作为形容词的意思为“失望的”，只能用来描述人。选项(C)disappointingly(失望地)是副词，不能用在have been后面。选项(D)disappointment如果在此处理解为“令人失望的事”，是一个可数名词，其前面需要加冠词A。