2. How long have you been studying English? I’ve been studying english for six years
3. How long have they been living in London? They have been living in London since 2010
4. How long has Mandy been working in that shop? She’s been working here since last month
5. How long have Ben and Cindy been playing tennis? They have been playing for an hour
6. How long have you been watching TV? I’ve been watching TV since five o’clock