1) I have been reading this book for 5 weeks.
2) Tom has been cooking since morning.
3) Children have been playing on the playground since 3 o’clock.
4) Students have been studying physics for 2 years
5) Have you been writing your homework since morning?
6) Ann have been taking care of her brother for 3 years.
7) Has Jane been writing this later for 1 hour?
8) How long have you been watching this film?
9) My teacher has been wanting for me for 15 minutes
10) I have been playing this game since last evening.