6. Joe's friends... a lot about him before they... he was safe.
(a) worried... had heard (c) had been worried... had heard (b) were worrying... heard (d) had been worrying... heard
7. I... a woman outside, she… at us.
(a) have seen... was looking (c) see... was looked (b) am seeing... looks (d) see... is looking
8. If she... arrive, we... have dinner together.
(a) doesn't... can't (c) won't... don't (b) will not... will not (d) can't ... wouldn't
9. They... dinner...
(a) have finished... an hour ago (c) have finished... since an hour (b) finished... an hour ago (d) finished... for an hour
10. I... a book in the sitting room when I... some noise.
(a) was reading... heard (c) read... was hearing (b) have read... heard (d) read... have heard
11. He'd do it if he...
(a) would want (b) will want (c) wanted to (d)'d want to