skills test for unit 21

System

we've supposedly been doing unit 21 since we started in september. skills test was due before christmas but postponed until next week. this week we were told we were only going to do half the skills test. we did a mock of the half we are going to do this week. not one of us managed to get through it. the tutor is a complete scatter brain. the tutor can't find their own way around sage let alone let us know what we're looking for. but i have just looked at unit 21 in the book and it is nothing like what we have been doing. Just wondered what others were doing for unit 21. starting to feel like i am on the wrong course as i am learning absolutely nothing.