问题

Why do we get up so early— If we ______ the flight we would have to stay herefor another day
A:Wasthattrue
B:Ifthat was true
C:Shouldthat be true
D:Couldthat be true
B:Ifthat was true
C:Shouldthat be true
D:Couldthat be true
正确答案是: