Order of ATC instructions
Messages should not contain more than three specific phrases comprising a
clearance, instruction or pertinent information. In cases of doubt, e.g. a foreign pilot having difficulty with the English language or an inexperienced pilot unsure of the procedures, the number of items should be reduced and if necessary passed, and acknowledged, singly.
This is an extract from the CAP 493 Manual of Air Traffic Services part 1. Not always easy to do when really busy but hope this helps.