问题

Whoit be that is knocking at the door?——Itbe Father, but I’m not sure.
A:can; must
B:can; may
C:must; can
D:may; must
B:can; may
C:must; can
D:may; must
正确答案是:
同类题型
This pair of shoes ________ hand, and it _______ verycomfortable .
The reason _______ he was late againwas that he was caught in a traffic jam in the rush hour.
On the north of the bank _____ the Opera House, _____ was built two hundred years ago.
Why don’t you bring_____to his attention that you are too busy to do it?[ ]