Concerning your requests ,for the MS4 you have to start with the Assessment Entry Test ( it's an official test fro the ministry , you will find a sample in the MS4 teacher's book or here on this forum's page , just print it , give it to your learners the first hour you meet them , you correct it ,and you make an official report about the results and you report it to your headmaster , then after having corrected the papers you will a wide idea about the level of your learners , so you remediate ( repair what's going wrong) then you give them more tasks in order to remediate this is called ( consolidation) and this is what you find in the ministry's official planning of the MS4 level , you have three weeks for ( assessment - remediation - consolidation ) you are not going to stay 3 weeks , now 1 week is left so it's high time you started with that test .
For the MS2 level just have a look at the MS1 yearly planning and the learning objectives ( functions & Grammar) they have dealt with last year , and try to make a short revision on that .
concerning the program you can start with the MS4 just after you deal with the Entry assessment test and the MS2 too , but for this level you h