Choose the correct word i must/ should have been mad to enter the karaoke competition last night. what was i thinking & i really cant/should have thought about it a bit more carefully. why did i agree to it when i could/would have stayes at home and watched a dvd instead? but no ! i made a compete fool of yself in front of all my friends. it might be/have been all right if they'd given me a song i knew. bit it was this really wierd song i'd never heard before. i cant/mustnt have got any of the notes right. it was so embarrassing
