С! correct the sentences. write one negative and one affirmative sentence for each. образец: they're celebrating bonfire night. (hallowe'en) they aren't celebrating bonfire night. they're celebrating hallowe'en. 1 they're wearing normal clothes. (costumes) 2 john is singing. (dance) 3 they're drinking water. (orange juice) 4 helen is talking to a vampire (frankenstein's monster) 5 they're having a terrible time. (fun)