1. It is difficult to take photos of wild animals.
It is not easy to take photos of wild animals.
2. Sportsmen usually move fast.
Sportsmen don't usually move slowly
3. Photographers need to think creative to take good photos.
Photographers think creatively to take good photos.
4. You need to wait for a long time.
You need to be  patient.
5. Photographers also need to sit quietly.
Photographers should find a  quiet place to sit.