Variety Is the Spice of 3. They sent /have sent me a letter a week ago. 4. He's proud of himself, he has achieved/achieved great results in swimming tournament. 5. The teacher is very angry as Bill forgot/ has forgotten to do his homework. 6. Bill visited/has visited the History Museum the other day. 7. The film just began/has just begun. 8. Who did you see/has you seen at the theatre last night?