a) I have answered the question
b) She has opened the window.
c) They have called us
d) You have carried a box
e) He has washed the car
2- a) stayed
b) enjoyed
c) saw
d) was/were
e) ate
f) played
g) went
h) drank
i) visited
j) closed
3. c) Has Andrew repaired his bike?
4. a) has
b) have
c) have
d) have
e) has
5. c) Your dad has not driven his car for ten days.
Espero ter ajudado