complete the sentences using ONE word:
6. Sarah is lucky because she has .... a really easy-going boss.
7. We .... a nice coffee and then went for a walk in the park.
8. Do we really have .... invite Barry to the party?
9. If I .... known it was Sheila, I wouldn't have recognized her.
10. Sorry, I haven't a .... what this word means. I just don't know.