Choose Past (Simple/Continuous) or Present/Past Perfect (Simple/Continuous). 1. You (finish) already? — No, not yet, in spite of the fact that I (be) at it for hours now.
2. It was not until a short time ago that people (begin) to realize what impact the revolution (have) on their ancestors.
3. Friends who (talk) with him in the past few weeks, say he has changed.
4. We (look) for opportunities everywhere in the past few months.
5. Nobody (come) to see us since we bought these bloodhounds.
6. While the American car industry’s output (slide) into the recessions of the 1970s the plant’s sales (fall) abruptly.
7. After he (sit) on several examination boards, he (decide) to resign.
8. After many discussions we (come) to a decision.
9. From the early 1980s onwards we (witness) a steady decline in industrial activity.
10. In the course of the cold war period the administration (arrest) people suspected of communist sympathies all over the USA.
11. We arrived just after the party (begin) to warm up.
12. We (do) business with them for a great many years, when suddenly without a plausible reason they turned to our competitors.
13. You (neglect) some of your customers for several months now, so that you need not be surprised if you lose them at all in the end.
14. After the police (find) the murder weapon, the facts of the case suddenly began to add up.
15. I’m sorry, I (forget) where she lives.
