问题
选择题
Mr Bush is on time for everything. How____ it be that he was late for the opening ceremony?.
A．can
B．should
C．may
D．must
答案
答案：A
考查情态动词，can 能，会，should 应该，may可能，must 必须，句意：布什先生一切都很按时，他怎么会开幕式迟到呢？故选A。
搜题请搜索小程序“爱下问搜题”