Написать плюс минус и вопрос 1) i istudy first aid 2)one student feel well

1. I study first aid. ( + )
.I don't study first aid. ( - )
Do you study first aid? ( ? )
What do you study? ( ? )
2. One student feels well.( +)
One student doesn't feel well. ( - )
Who doesn't feel well? ( ? )