нужен.Как можно правильно .

2A  did ;got

B been

3A has ;worked

B finished

4A have;had

B bought

5A  did  met

B known

6A have;lived

AОбъяснение:

In the world there are many professions. each person needs to find his calling. to choose work needs to be based on their personal desires and qualities. i chose i want to be a csi! i want to understand the motives of criminals and prove their guilt. my mom works for the police. i want to follow in her footsteps. in the work of criminologist requires knowledge of the natural sciences, attentiveness, patience, good intuition. much i do not know and do not know how, but i'm learning and trying to change it. in forensic science there are many terms and equipment in the english language. to make it easier to work with and in communication with foreign colleagues in english language is needed. i hope that my future job will bring me happiness and i become a famous criminologist. the ability to help people to get justice - that's what attracts me in my future profession!