Helpppppp,it s very urgenttttttr

1) disappear / disappeared
present / presented
return / returned
stop / stopped
be / was
begin / began
come / came
cost / cost
have / had
2) 1. began
2. were
3. wasn't
4. cost
5. came
6. presented
7. had
8. disappeared
9. stopped
10. returned
3) 1. a)
2. a)
3. b)
4. b)