Why didn't you come to Mike's birthday party yesterday? — Well, I （ ）, but I forgot it. （A）need have （B）ought have （C）should have （D）must have
I love the weekend because I （ ） get up early on Saturdays and Sundays. （A）needn't （B）mustn't （C）wouldn't （D）shouldn't
We （ ） last night, but we went to the concert instead. （A）must have studied （B）might study （C）should have studied （D）would study
I （ ） asleep in the corner, for I remember nothing of what happened during the night. （A）might fall （B）must fall （C）must have fallen （D）can have fallen
My wallet is nowhere to be found. I （ ） when I was on the bus. （A）must have dropped it （B）must drop it （C）should have dropped it （D）ought to have dropped it
