Choose the correct options

1. By the time his invention is ready, the scientist
   [will have worked|will be working|will have been working] on it for 20 years.
2. By the year 2050, people
   [will have travelled|will be travelling|will have been travelling] through time.
3. He
   [will have repaired|will be repairing|will have been repairing] the robot before the demonstration.
4. He
   [won't have created|won't be creating|won't have been creating] a new flavoured chewing gum before next year.
5. John
   [will have finished|will be finishing|will have been finishing] his mind control device by the end of the year.
6. The company
   [will have built|will be building|will have been building] the human flying suit by September.
7. The inventor
   [will have shown|will be showing|will have been showing] his designs this time tomorrow.
8. The lab
   [won't have completed|won't be completing|won't have been completing] the testing until Friday.
9. This time next year many people
   [will have driven|will be driving|will have been driving] robot cars.
10. Will you
    [have worked|be working|have been working] on your invention later tonight?