Could you please check these statements, please? Thank you.

1) the first who trusts/to trust are both possible?
2) "Let's check the answer to those exercises"
She proposed checking the answers...
She told/ordered us to check....
She suggested checking the answers
She apologized to me for keeping me waiting.
3) Cheetahs have always been poached by poachers (??)
4) At first he didn't risk coming into the camp, but after 20 minutes he dared to come (into it??) and began feedin on the fruits.
5) The elephant represents hope because he has learned how to trust humans.
African cheetahs capture their prey in semi-arid desert regions.
6) He was the first that (correction: who/to) learnt to trust humans by going near the camp to eat food.

1 answer

1) the first who trusts/to trust are both possible?
I can't tell without seeing the phrase in a complete sentence.

2) "Let's check the answer to those exercises"
She proposed checking the answers...
She told/ordered us to check....
She suggested checking the answers
She apologized to me for keeping me waiting.
All are fine.

3) Cheetahs have always been poached by poachers (??)
It's redundant. I'd say this: Many cheetahs have been killed by poachers.

4) At first, he wouldn't risk coming into the camp, but after 20 minutes he dared to come in and began feeding on the fruit.
See all the corrections?

5) OK

6) He was the first to learn to trust humans by going near the camp to eat.
See the corrections?