1. I () my new CD and I can't find it anywhere

    lost

    have lost

2. Mary () to the party last night.

    did not go

    has not gone

3. John () a lot in South America.

    travelled

    has travelled

4. I () this guy since I was a child.

    did not see

    have not seen

5. We () The Rolling Stones in concert last year.

    saw

    have seen

6. Mary's arm is in plaster. She () it.

    broke

    has broken

7. Jerri and Rob () when they were on a business trip together.

    met

    have met

8. The band () in the recording studio for several hours.

    were

    have been