I left out the following sentences. Thank you very much.

1) The government plans to import cheetahs from Africa.
This project includes building a breeding site.
2) At first, the elephant stood on the edge of the camp but, after twenty minutes, one elephant dared to get into the camp and feed on the fruits of the Marula trees.
3) Did you manage/Were you able to/ (No:could you?) finish the exercise?
I saw that he was studying.
I can't help admitting cheating in the Maths test.
4) She is reported (by newspapers? should it be omitted?) to have lived in Paris.

1) OK

2) At first, the elephants stayed on the edge of the camp, but after twenty minutes, one elephant dared to go into the camp and feed on the fruit of the Marula trees.
(This needs to be the LAST time I make these same corrections in this sentence!)

3) Did you manage/Were you able to/ (No:could you?) finish the exercise?
Did you manage to finish ... ?
Were you able to finish ... ?
Could you finish ... ?

I saw that he was studying.
I can't help admitting that I had cheated on the Maths test.

4) She is reported to have lived in Paris.
OR
Newspapers reported that she lived in Paris.