1. It takes Jack 2 hours to do his homework. 2. It took her half an hour to tidy up her room. 3. It took the boy 3 hours to do his homework. 4. It took us an hour to write the test. 5. It took them a lot of time to discuss all the problems. 6. It took me an hour to read 100 pages. 7. It took the girl 2 minutes to make her bed. 8. It took him ten minutes to cook breakfast. 9. It took her 3 hours to do the shopping. 10. It took him an hour to sign all the papers.