1)

a) have studied

b) has bought

c) have gone

d) have given

e) has eaten

f) have played

g) have drank

h) have shared

i) has watched

j) has read

2)

* a)

neg: The students haven´t studied for the final exames.

int: Have the students studied for the final exames?

* b)

neg: Jane hasn´t bought new clothes.

int: Has Jane bought new clothes?

* c)

neg: My friends haven´t gone to London.

int: Have my friends gone to London?

* d)

neg: My parents haven´t given presents to me.

int: Have my parents given presents to me?

* e)

neg: Mike hasn´t eaten hamburgers.

int: Has Mike eaten hamburguers?

* f)

neg: The girls haven´t played soccer well.

int: Have the girls played soccer well?

* g)

neg: I haven´t drank wine.

int: Have I drank wine?

* h)

neg: Sarah and Mike haven´t shared videos at the internet.

int: Have Sarah and mike shared videos at the internet?

* i)

neg: Chris hasn´t watched horror movies.

int: Has Chris watched horror movies?

* j)

neg: Jeff hasn´t read the newspaper.

int: Has Jeff read the newspaper?

Explicação:

Present perfect (estrutura)

Sujeito + have (usado na maioria das vezes) /has ( que só é usado quando o sujeito é He, She ou It) + verbo principal no particípio + complemento.

Present perfect negative (estrutura)

Sujeito + negativo do verbo have (usado na maioria das vezes) /has ( que só é usado quando o sujeito é He, She ou It) + verbo principal no particípio + complemento.

Present perfect question ( estrutura)

Have (usado na maioria das vezes, menos quando o sujeito é He, She ou It) /Has ( que só é usado quando o sujeito é He, She ou It) + sujeito + verbo principal no particípio + complemento + ?

Desculpe pela demora, foi por conta do tempo de escrita,

Espero que isso tenha ajudado, bons estudos ;) !