Some of the sentences are incorrect. Rewrite them correctly if necessary . 1 I didn't hear this band before. Who are they? 2 Callum's still off school. He was ill for over a week. 3 Have you finished your homework last night? 4 Hannah got a new laptop for her last birthday. 5 I've sprained my wrist so I can't do my exams. 6 Did you take your driving test yet? 7 Leon has broken his leg while he was playing rugby. 8 We're hungry! We didn't eat since breakfast!