I scored 10/10 I would expect any native English person who attended school to know these and to score the same or similar say 8/10 correct.
I would say any person claiming to be a qualified teacher or a teacher that has certificates to be able to score a minimum of 8/10, any less and they should not be teaching claiming to take students to a high level in any exams. They may still be able to assist learners with basic English.
The questions should be very easy up to about question number 7 for any native or qualified person claiming to have a modest vocabulary.
In my humble opinion.
Does not apply to community teachers they only claim to be native speakers wishing to assist.