Răspuns:
C. they have cleaned
you have finished
she has played
she hasn't known
you have bought
I have run
he has found
we haven't forgotten
we have sung
it has rained
D. They haven't gone to the park.
She hasn't done the shopping.
The twins haven't broken the window.
I haven't learned new words.
Patsy hasn't cut her finger.
We haven't seen the film.
Anne hasn't lost her mobile phone.
They haven't stolen the lipstick.
Sam hasn't built a tree house.
Jeff hasn't made pizza.
E. for two hours
since Christmas
for a long time
since 1997
for five years
since 12 o'clock
since I was three years old
for years
since Sunday
for a few minutes