Răspuns:
Here I am ( to reply) replying to your letter which ( to arrive ) arrived two days ago,
before ( to leave ) I left for Rome. I ( to tell) told yesterday that the company ( to send) is sending me there next week for a business conference. If I ( to know)knew about it earlier I ( to inform )informed . Anyway I ( to ring) ring you up as soon as I ( to can)can. By the way, I met John Marshall who ( to work ) worked for the previous two months on some interesting plans.