1. a) she is reading. (b) she has been reading since morning.
2. a)they play volleyball every Friday. b) They have been playing volleyball since three o'clock.
3. a)we learn English. b) we have been studying English since 1998.
4.a) my dad works at an Institute.
b) my father has been working at the Institute since 1995.
5. a) My grandmother is cooking a meal.
b) My grandmotherhas been cooking dinner since two o'clock.
6. a) Grandfather is watching TV.
b) Grandfather has been watching TV since six o'clock.