Tthough I was really tired, I decided to …. and finish the project. 

a teacher is a really … job 

She is a … person, it’s no problem for her to do different kinds of things 

I was skilled enough to do the job, but I decided to … and take a course on accounting 

My job is really … I am happy that it helps people 

I am not a … person, so it’s not easy for me to do switch between different kinds of tasks