Нужно выписать предложения в present perfect: mike: we're having a lovely time, dad . david: i'm sure there's a lot to do! mike: there is! we're been for a walk in central park. it's so big! everything here is big! we've climbed the empire state building. we haven't been to chinatown either. we're going to do that tomorrow. david: have your seen the statue of liberty? mike: oh, yes, we have. we're just had a helicopter tour of the city. we're going to see a show on broadway. david: darling, enjoy your time. mike: dad, have you ever heard the nickname of new york? david: of, course. the big apple. mike: yes. bye-bye, dad. david: bye, darling!