Choose the correct answers. 1 I's/m married. 2 They aren't / isn't Brazilian. 3 You 's/'re at work. 4 They 're/'s from Japan. 5 My brother 're/'s a student. 6 We 'm not / aren't Polish. We're Russian. 7 My parents aren't / isn't on holiday. 8 They 'm/'re at work. 9 Sydney isn't / aren't the capital of Australia. It's Canberra. 10 I'm not / isn't a tourist. 11 You aren't / isn't a businessman. 12 We 're/'s fine, thanks.​