a) was driving / played b) drove / played c) was driving / was playing

d) drove / had played

2. He ... when he ... on a banana skin.

a) walked / slipped b) was walking / slipped c) has been walking / slipped

d) was walking / had slipped

3. Jennifer Aniston ... in a number of successful films.

a) had starred b) had been starring c) was starring d) starred