Present Perfect Continuous
Complete the question and answer it: ___ you been ___ (work) a lot lately?
Have you been working a lot lately? Yes, I have. / No, I haven't.
Complete the question and answer it: Have you ___ ___ (read) a lot of books lately?
Have you been reading a lot of books lately? Yes, I have. / No I haven't.
Complete the question and answer it: What do you think your best friend ___ been ___ (do) this week?
What do you think your best friend has been doing this week? I think he/she has been...this week.