Răspuns :
Răspuns:
1. I have been trying to reach you for two days.
2.They have been discussing about the exam for an hour
3.i have been tidying my room.
4.She has been feeling sad about her cat.
2. I've been trying
3. have been dicussing
4. has been feeling
ex 6.
0=e
1=c
2=b
3=d
4=a