Conjugation present perfect:
1.We(buy)...a new lamp.
2.We(not/plan)......our holiday yet.
3.Where(be/you)?
4.He (write)......five letters.
5.She (not/see) ..... him for a long time.
6.(be/you).....at school?
7.School(not/start)...yet
8.(speak/he)...to his boss?
1.We have bought a new lamp.
2.We haven't planned our holiday yet.
3.Where have you been?
4.He has written five letters.
5.She hasn't seen him for a long time.
6.Have you been at school?
7.School hasn't started yet.
8.Has he spoken to his boss?
1, have bought
2. haven't planned
3. have...been
4. has written
5. hasn't seen
6. Have...been
7. hasn't started
8. Has...spoken