Fill in: may,mustn’t or can’t.
1) a: the band is going on tour again.
b: wow! they be so excited.
2)a: isn’t that mike’s bag?
b: it be.i saw him put his in the car.
3) a: what are you doing this afternoon?
b: i didn’t know, i go shopping.
4) a: he works in a coal mine.
b: that be hard work.
5) a: are they coming to the cinema?
b: they come if they have time.