Помогите пожалуйста разобраться с английским

1. It is snowing (since morning) – It has been snowing since morning. 2. Your friend is waiting for you. (for over an hour) – Your friend has been waiting for you for over an hour 3. Are you crying? (How long …?) – How long have you been crying 4. My elder sister is studying German. (for five years) – My elder sister has been studying German for five years 5. Kevin is looking for a new house. (since June) – Kevin has been looking for a new house since June 6. The children are playing football in the yard. (since it stopped raining) - The children have been playing football in the yard since it stopped raining 7. Harry is working in Leeds. (since Easter) – Harry has been working in Leeds. since Easter 8. The girls are looking through a fashion magazine. (since dinner time) – The girls have been looking through a fashion magazine since dinner time 9. My husband is repairing his car. (since he came home) – My husband has been repairing his car. since he came home 10.They are staying at the Hilton. (for a week) – They have been staying at the Hilton. for a week 11.The amount of crime is increasing. (for the last few years) – The amount of crime has been increasing. for the last few years 12.The famous detective is travelling in America. (since the beginning of autumn) –The famous detective has been travelling in America. since the beginning of autumn 13.The children are drawing. (since they were left alone) – The children have been drawing. since they were left alone 14.Oh, dear! They are quarrelling again. (all morning) – Oh, dear! They have been quarrelling again. all morning 15.The secretary is typing the report. (for two days) – The secretary has been typing the report. for two days 16.The girl has been walking her dog in the park. since 4 o’clock – 17.Is he still sitting there? (Since when … ?) – Since when Has he been still sitting there? 18.The children are taking a music lesson. (for two hours) - The children have been taking a music lesson. for two hours