H. Read the sentences and choose the appropriate modal verbs. 1 We weren't able to chat online while we were in 4 You aren't allowed to talk in the library Warsaw You couldn't/mustn't talk in the library We can't couldn't chat online while we were in 5 It's necessary for me to buy a new fridge Warsaw I have to/can buy a new fridge. 2 Is it OK if I use your smartphone? Can/Must I use your smartphone? 3 It's not a good idea to give your personal information online You shouldn't should give your personal information online Points
