PRESENT PERFECT EXERCISE

1 I/GO/TO THE LIBRARY TODAY 
 I HAVE GONE TO THE LIBRARY TODAY

2 YOU/KEEP/A PET FOR THREE YEARS
 YOU HAVE KEPT A PET FOR THREE YEARS

3 YOU/EAT THAI FOOD BEFORE?
 HAVE YOU  EATEN  THAI FOOD BEFORE?

4 IT/RAIN ALL DAY?
 HAS IT RAINED ALL DAY?

5 WE/NOT HEAR/ THAT SONG ALREADY
   WE HAVEN'T  HEARD THAT SONG ALREADY

6 SHE/STEAL/ ALL THE CHOCOLATE
  SHE HAS STOLEN ALL THE CHOCOLATE

7 HE/STUDY/LATIN
   HE HAS STUDIED LATIN

8 YOU/NOT TAKE/ A TAXI
   YOU HASN'T  TAKEN A TAXI