помогите пожалуйста с упражнением по английскому языку
present perfect simple or present perfect continuous

1 we have known each other since we were children. 2 the children have been playing computer games for two hours. 3 has your sister been having that hairstyle for a long time? 4 I have loved her the first day since we met.5 my Internet connection hasn't been working since yesterday. 6 How long have you been waiting? 7 I have been a teacher for three years. 8 it has been snowing since five o'clock this morning. 9 Sam hasn't been studying enough recently. 10 How long have you been living in London for a long time?