4. He as a nurse in the hospital this year. (work)
5. The students' in the library now. (study)​

Explanation:

He as a nurse works in the hospital.

The students' study in the library.

I finally got a shipping job on the docks. I start my first travel tomorrow. I am very nervous. I have never been on a boat. What if I get seasick or I give the wrong coordinates? That will be an embarrasment to me and my family. I would probably get kicked off the docks and I wouldn't be allowed to step a foot onto the ships. I beat stop. We leave at first light.

Sincerely,
Benjamin Breaks