Read the information and choose the appropriate modal verb. Refer to Ex. 46.
1 You should / could / can have an insurance policy. You may fall ill during your travels and visiting a doctor or staying in hospital costs a lot of money. If you have insurance, your insurance company pays for you.
2 When you are abroad, you usually shouldn't / can't / mustn't buy
anything with money from your own country. All goods can /
may / must be paid for in foreign currency only. If you want to buy
something, you may / can / should have some currency on you.
3 If you don’t want to get into trouble, make sure you have a label on
your luggage. At the airport, your bag must / can / should be lost or
confused with somebody's luggage. A label with your contacts should /
can / need help you get it back.
4 A visa is the most essential thing. You needn't / shouldn’t / can't enter
the country without it. You mustn’t / shouldn’t / needn't stay in the
country longer than your visa allows: otherwise you can run into
problems with the police.