1. It was at the age of 14 that Jack London ( leave ) left school and ( become ) became a sailor
2. The video film was so interesting that I ( see ) saw it twice
3. It was the first time they ( ever meet ) ever met.
4. The news ( be ) was quite alarming yesterday
5. We ( not live ) have not lived in England for two years now
6. I will never forget what you just told me.
7. They are preparing the Christmas dinner at the moment.
8. When I last stayed in Cairo, I rode to the Pyramids on a camel that my friend had borrowed the day before.
9. Our teacher told us yesterday that he visited England in 1970.
10. George has worked at the university so far.
11. When he lived in Manchester, he worked in a bank.
12. Birds build their nests in the summer and fly to the south in winter.
