Ex. 341

[Radek]

I have problem

6. Caesar will delay three days because of the grain supply

In key is: Caesar dies tres propter rem frumentariam morabitur

I think should be: Caesar dies tres rei frumentariae causa morabitur.

In lession LX special vocabularies is: causa - for sake of, because of (stand after gen.)

[Ulpianus]

Your preference is certainly idiomatic. As it happens, we can pluck a concrete example from Caesar himself:

ipse unum diem ibi rei frumentariae causa moratus Corfinium contendit BC I.16.

(But I don't think one could say the key was wrong. They are different ways of saying the same thing.)

[Radek]

Thanks for your request.
I also think it`s idiomatic and both version are corect.

I asked because I wanted to know if my wersion was corect.

[Episcopus]

For me also "tris dies" sounds somewhat clumsy. I would write triduum, three days.