Complete the sentences with comparative/superlative structures. when do we use comparatives & superlatives? 1 london heathrow is by (large) airport in the uk 2 some workers in the air (kind) to the homeless than others. 3 (difficult) thing about living in the terminal is hiding from the guards 4 eram isn' (desperate) as some other homeless people. 5 eating in an airport (expensive than eating on the high street. 6 (long) eram lives in the terminal (easy) it will be for the security guards ro spot her.