Fill in the Blanks U1: "Present Simple Passive...Online version Use the Present Simple Passive Voice. Check your knowledge! by Dasha Kvilis 1 The postbox ( to empty ) every day . The stamps ( to postmark ) at the post office . The letters ( to sort ) into the different towns . The mail ( to load ) into the train . The mailbags ( to unload ) after their journey . The bags ( to take ) to the post office . The letters ( to sort ) into the different streets . The letters ( to deliver ) .