B) We started this course three
weeks ago. c) 'What have you been doing
all day?' 'I've been writing
letters.'
d) When did you arrive in this city? e) Have you ever been to India?
f) Paula has been staying in a hotel
by the sea.
g) I've been feeling ill for three
weeks/I felt ill three weeks ago.
h) I've lived/I've been living in this city since I was born.
i) I've been waiting here for
ages. Where have you been?
i) Tony has left his books on the
bus.