My brother didn't become a songwriter until he finished his music studies at university.Mary bought new skating gear, didn't she?Lin was playing in her tree house, when her mum called her for lunch.I have a doctor's appointment. Could you please look after the children while I'm out?We have been playing chess all morning. Can we do something else now?Mary lives in Hollywood, but she has never met a famouscelebrity.Tom believes that the house down the street is haunted.When you freeze water, it turns into ice. I don't really think there'll be flying cars someday, but I guess anything is possibleChristopher goes to the university on foot every day, as he enjoys the exercise.Everyone at the wedding danced and sang, to celebrate the happy occasion.