1. Sam........bought...... a new cell phone a few months ago. (buy)
2. I didn't know that he bought a new cell phone. Yes, he.........has had......... it for a few months now. (have)
3. Last year we..............went.........  to Scotland for our holidays. (go)
4. You look relaxed! Yes, I............have just been.........  on vacation. (just been)
5. I can't join you now because I ............haven't done....... my homework yet. (not do)
6. I..........did........  all my homework yesterday afternoon. (do)
7. I........didn't sleep...... very well the last nights. (not sleep)
8. Are you tired? Yes, I........have had.......... a hard day. (have)
9. Here is the news. There .......has been.......... an accident on the M1 near Nottingham. (be)
10. I .....have .lost......... my keys. Did you take them with you this morning? (lose)
11. Tom ...has lived......... in Sydney all his life. (live)
12. How long......did you stay..........  out last night? You look tired. (you stay)
13. ......Have you ever had........... an accident? No, never. (you ever have)
14. My sister is going to Italy in the summer. That's why she.......has started.........  to learn Italian. (start)
15. I........didn't have..........  a cold last year. (not have)