1.write what you must/musn't do or be at school. (polite, listen to the teacher, be late for school, friendly, miss lessons, come to school on time, use mobile) 2.fill in have to, has to, don't/doesn't have to, had to or didn't have to. 1) i had a headache, so some medicine. 2) mike's car doesn't work, so a bus. 3) we went to a cafe yesterday, so my . 4) it rained two days ago, so the flowers in the garden. 5) ann and her glasses. they can't read without them. 6) the children aren't going to school today, so up early. 7) tom feels beeter now, so in bed.
