问题
选择题
(2010·北京高考)—Good morning. I've got an appointment with Miss Smith in the Personnel Department.
—Ah, good morning. You ________ be Mrs. Peters.
A．might
B．must
C．would
D．can
答案
答案：B
选B 考查情态动词。第一句说明和史密斯女士有约定，所以秘书判断一定是……。must在此表示推测，意为“一定”，符合语境。