However, it can often be difficult to determine which method is best for your particular situation.
It can be difficult to determine which came first, the depression and anxiety or the addiction.
Thus, it is difficult to determine which reshaping way is fittest to classification.
In many cases, it would be difficult to determine which of the President's innumerable "functions" encompassed a particular action.
With this method of delivery, it would be quite difficult to determine which target was being threatened.
Regulation is so primitive that federal officials say that among the hundreds of small aircraft crashes every year, it is often difficult to determine which ones involve tours.
It is difficult to determine which Democratic hopeful is best organized in the state, since those with people on the ground do not advertise the fact.
Mr. Rubel added that until the Pentagon issued a modified request for proposals from the two companies, it would be difficult to determine which might have an edge.
If you alter too many things at once, it will be difficult to determine which piece of a complex change produced the desired effect.
And it is even more difficult to determine which, if any, of those visitors are militants following the dangerous route of traveling to Pakistan for indoctrination and training.
It is extremely difficult to determine which of these two cases is more prominent in practice, for the following two reasons.
