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15. Up to now,the programme      ( save) thousands of children who would otherwise have died.

14. ―Oh no!We're too late. The train      (leave) . ―That's OK. We'll catch the next train to London.

13. He      ( work) on the farm since two years ago.

12. It      (be) ten years since he left the army.

11. 一Our country        (change) a lot so far.

―Yes. I hope it will be even      (good) .

10. ―I heard the peasants here      (be) very poor in the past.

  ―Yes,but there        (be) great changes in the past few years.

9. He      (be) Beijing,so he knows a lot about it.

8. ―         (sec) my pen? I can't find it.

一I saw it on the desk just now.

7. ―Where is your new home now?

―In the downtown. But I      (live) in the village for five years.

6. ―Did you enjoy your holiday?

―Yes. It is the best holiday I     (have) these years.