a) My father works at an institute.
b) My father has been working at the institute since 1995.
b) My father has been working at the institute since 1995.
a) My grandmother is cooking dinner.
b) My grandmother has been cooking dinner since two o’clock.
b) My grandmother has been cooking dinner since two o’clock.
a) My sister is sleeping.
b) My sister has been sleeping since five o’clock.
b) My sister has been sleeping since five o’clock.
a) Mother is doing the flat.
b) Mother has been doing the flat since morning.
b) Mother has been doing the flat since morning.
a) Grandfather is watching TV.
b) Grandfather has been watching TV since six o’clock.
b) Grandfather has been watching TV since six o’clock.
a) My uncle writes poems.
b) My uncle has been writing poems since childhood.
b) My uncle has been writing poems since childhood.
a) She is reading.
b) She has been reading since morning.
b) She has been reading since morning.
a) They are playing volleyball.
b) They have been playing volleyball since three o’clock.
b) They have been playing volleyball since three o’clock.
a) We study English.
b) We have been studying English since 2006.
b) We have been studying English since 2006.