4 The weather is cold, but raining. a it doesn't b it isn't с it not 5 A What___DOING? B. I'm studying for an exam a are you b do you с you are 6 Look! The Queen's flag ___ a fly b flies с is flying 7 The museum at 2.00 on Mondays. a closes b is closing с close 8 A What? B. I'M a nurse a are you doing b do you do с do you