Réponse :
a. I was in the kitchen when the jewel was stolen in the bedroom so he may be the thief
b. I can't recognise the suspect, but I really didn't see him very well
c. We found this knife covered in blood at the crime scene. It must be murder weapon
d. The light was off, but I think I regognised the way he walks. He might be the culprit
Explications :
jsp si tu sais mais petit récapitulatif
can't = ne peut pas
might = pourrait
may = peut être
must = doit