(You should) place both hands on the bar and push hard.
The paper is inserted in the machine as follows:...
Please / Kindly ensure that / see to it that you are here by 7 a.m.
You must / You are to / You will report to the duty sergeant on arrival.
You have (got) to do as I say, there are no two ways about it.
You have to have / You need a teaching qualification in order to be considered. / A teaching qualification is a requirement for this post.
It is essential / necessary / indispensable / obligatory / compulsory to wear protective clothing.
Everyone is obliged / required to sign this declaration.
He was forced by the thieves to open the safe.
Do I really / Surely I don't have to come now?
Under no circumstances / On no account must you drink alcohol after taking these pills.