Răspuns:
la a) nu inteleg ce trebuie adaugat
b) I have never been on a plane before
c) My pen disapeared
d) do not study at this school
e) I just saw a friend
f) I didn't finish writing my letters yet
g) Have you ever been to South America
h) I left my wallet in the car
i) Haven't spoken
j)Has Anna woken up yet?