Find in each blank with a suitable preposition in/on/at

as23526400

We paid a visit to a secondary school  1.________the first day.the school eas very old with a lof of broken desks and chairs. 2._________that day we were reaponsible for teaching them the alphabet. When we started to write the 26 letters 3._______the blackboard.

[ 本帖最後由 as23526400 於 2010-4-4 11:50 編輯 ]