2)the nurses don't help people.
Do the nurses help people ?
3)a waiter doesn't serves food and drinks.
Does a waiter serves food and drinks?
4)the mechanics don't fix car.
Do the mechanics fix car?
5)a teacher doesn't teach student.
Does a teacher teach a student?
6)the postmen don't carry a big bag.
Do the postmen carry a big bag?
2)the nurses don't help people.
Do the nurses help people ?
3)a waiter doesn't serves food and drinks.
Does a waiter serves food and drinks?
4)the mechanics don't fix car.
Do the mechanics fix car?
5)a teacher doesn't teach student.
Does a teacher teach a student?
6)the postmen don't carry a big bag.
Do the postmen carry a big bag?