Can't I say, "illa templa in foro sunt"? It was marked wrong.
I can't find anything wrong with it.
"Illa templa in foto sunt" accepted 2020-01-02. Apparently somebody used the "report" button and it got accepted some time between then and now.
Still not working for me
Templum is singular and templa plurial?
Yes, templum is the (nominative, accusative, vocative) singular and templa is the (nominative, accusative, vocative) plural.
wouldn´t be "illae" instead of "illa"?
No, illae is the nominative feminine plural. Since templa is neuter, we have to use illa which is nominative neuter plural here.
I put "Templa illa in foro sunt," and it was not accepted. What is incorrect?
Next I tried, "Illa templa in foro sunt," and this was also unacceptable.