Fill in the gaps with must or can't 1 A: Wow! Look at that man in the beautiful car. B: Yes, he ...must... be very rich. 2 A: I passed my exam! B: Congratulations. You be very happy. 3 A: Aunt Sheila's dog died. B: Oh no. She be very sad. 4 A: That woman always wears smart clothes and lots of jewellery B: I know. She be poor. 5 A: I've been working all day without a break. B: Sit down, you be really tired 6 A: I've finished tidying my room. I'm ready to leave now B: You be ready so soon! You only started ten minutes ago!