Fill in the gaps with the correct words.

1. Did you know that Jim is ... now? He decided he didn't like working for other people.

2. Mary can only work ... as she has two children to take care of.

3. William wants to find a ... job after working night shifts for 10 years.

4. You must have good communication ... to become a nurse.

5. "It's 7 o'clock, where's Nick?" "He is working ... today, he'll be back later."