问题
选择题
Mr. Bush is on time for everything. How ____ it be that he was late for the important meeting?
A．can
B．should
C．may
D．must
答案
答案：A
题目分析：句意：布什先生做什么事情都是准时的，这么重要的会议他怎么会迟到呢？A. can表示推测，用于疑问和否定句中，B. should 应该，C. may 可以，D. must必须，选A。