Fill in the blanks with suitable modals from the table:

can can’t must mustn’t have to not have to should shouldn’t

• My sister _________ come to the party tonight because she _________do her homework for tomorrow.
• Female students, in Turkey, ___________ wear skirts at schools. The rules about uniform have changed so they _________ wear trausers now.
• Robert is getting fatter. I think, he __________ go on a diet.
• I’ve told you a hundred times! You __________ cross the rood when the traffic light is red.
• Jane, you have got a really bad cough. You __________ smoke so much.
• Mrs. Bronson has beautiful roses in her garden. She __________ be a very good gardener.

Choose the best modal in the sentences :

• You don’t have to / mustn’t go in that room. It’s for staff only.
• We had to / must take a taxi because the bus drivers were on strike.
• You must / have to be hungry. You’ve eaten nothing all day.
• Cathy must / has to take these pills. The doctor said so.
• She mustn’t / can’t be in her office. I saw her leaving two minutes ago.
• You must / can go through costums when you travel abroad.
• He mustn’t / can’t be guilty. He was at home when the robbery took place.