Obviously I didn't sit this paper, but if your question is the same as what you were asked, then you should have considered:
AR:
Appropriation;
of property;
belonging to another
Easy enough. Work through statute for whether these are fulfilled (remember, appropriation isn't simply "taking"
MR:
With the intention to permanently deprive the other of it
(Difficult)
DISHONESTLY! (Ghosh two-step test)
The MR is far more difficult to prove, as common law illustrates. If that's the question you were asked, that would be the general approach.
Considering the alternative of proving different elements of the AR more easily. It would depend on a scenario:
Property - defined at statute, so quite easy.
Belonging to another - more difficult. Consider who is the 'owner'; have they 'abandoned it'; is is 'in their control'; ought the defendant reasonably known the property was another's etc.
Appropriate - more than simply taking.
Something like that then?