1. Our teacher…………… (tell) us yesterday that he…………(visit) England in 1970.

2. George………………… (work) at a university so far.

3. When he lived in Manchester, he ………………… (work) in a bank.

4. Birds………………… (build) their nests in summer and ………………… (fly) to the South in winter.

5. I ………………… (lose) my key. ………………… (Can) you help me look for it?

6. My father ………………… (not smoke) for 5 years.

7. My teacher wasn't at home when I………………… (arrive). He ………………… (just go) out.

8. How long Bob and Mary ………………… (be) married?

9. You………………… (receive) any letter from your parents yet?

10. My brother ………………… (join) the army when he………………… (be) young.