ПОМОГИТЕ ПОЖАЛУЙСТА С АНГЛИЙСКИМ,6 И 7 НОМЕР

2. Colin has been going out with Tracy for about a year. Colin has gone out with Trace for dinner. 3 Tracy has been playing the piano in public since she was six. Tracy has played the piano in public many times. 4 Stephen has been acting in a music video all day. Stephen has acted in three music video.  5 David has been saving up his money. David has saved up almost 3,000 euro.  7 2 He hase been playing games for ages. 3 He has been lifting weights for two hours. 4 She has been teaching Colin to drive since two o'clock. 5 He hasn'tbeen eating recently. 6 I have been listening to this song all day long.