Should Shouldn't			We use should to ask for or give advice. We use should to express an opinion - tell someone what they ought to do.
	___________ I buy a new dress for the party? Oh yes, you ________ always look your best at parties. You __________ wear the purple one though, it doesn't suit you.			Mr Smith has broken his leg. He _______ sit down. He really _________try to inline skate at his age. He ____________ try walking or playing chess instead. He ___________ try to keep up with the teenagers.
Must Mustn't			We use must to express obligation. We use mustn't to express prohibition.(not absence of obligation)
		You ________ fight in class or you will get into trouble. You ________ follow the rules. You __________ eat chewing gum in the classroom and you ___________ pay attention to your teacher. You ______ study hard for the exam.		You _________ try to eat healthy food. You _________ eat too many hamburgers. You __________ eat lots of fruit and vegetables if you want to stay healthy. You _________ touch the oven when it is hot, you might burn your fingers.
Have to/has to / Don't have to / Doesn't have to			We use 'have to' to express what is necessary to do or what we are obligated to do. We use don't have to/doesn't have to to express what is not really necessary.
		I ___________ clean my room before I am allowed to go out. But still, if I do it now, Mum ____________ do it later. Mum is ill so she___________go to the doctors later. Maybe I'll make the dinner for her, then she __________ to do it when she gets back.			John ____________ read lots of books because he is studying to be a doctor. He __________do much homework because they do it in school. John and his friend Steve __________ stay late at school in order to do extra studying. They _______ do it for much longer. The exam is soon.
Fill in the gaps with should, shouldn't, must, mustn't or has to, have to, doesn't have to: Sam has got toothache, he really ___________ go to the dentist. Paul has just fallen off his bike. He ____________ go and get an X- ray tomorrow to see if it is broken. Mary can't go to the movies tonight, she _____________ look after her baby brother. Parents ___________always keep sharp knives away from children. You ___________ lift that heavy crate if you have a back ache. Tony________________ go on a diet, he is far too fat. You ____________ eat those mushrooms, they might be poisonous. Sally is having a party. She ________ make a cake, her brother ___________ set the table and the twins _____________ make the sandwiches before the guests arrive. Her mother ___________ do anything because she is not well. Aunty Josie ________ buy a present before she goes to the party, she hasn't got one yet. We _________ leave before 8 o'clock if we want to catch the early flight. We _________forget our passports. I ____________ to take my camera because Susi will have hers, but I ___________ remember to take enough cash. I ___________ need much because the holiday is all inclusive. I ____________ take my tummy tablets every day because foreign food does not agree with me.

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