didnt find this lot too difficult:
1. If the children prefer learning to running, Fronto is ready to teach them.
si liberi discendum currendo praeferunt, Fronto paratus est eos docere.
not sure about the two gerunds here, are they ok?
2. If the barbarians were silent, the praetors sent the wisest ambassadors to learn what was happening.
si barbari taciti erant, praetores legatos sapientissimos miserunt qui ... discerent.
any ideas how to do "what was ...