1. What are you doing? - I am reading. I have been reading for already two hours. I have read 100 pages.
2. Have you ever been to the new stadium? - Yes, I was there last Saturday.
3. If he rings me up tomorrow, I'll tell him all about it.
4. ... and my mother told me she would come soon.
5. Does he help his mother every day? - Yes, he does.